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[deliverable/binutils-gdb.git] / bfd / elfxx-sparc.c
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22b75d0a 1/* SPARC-specific support for ELF
2571583a 2 Copyright (C) 2005-2017 Free Software Foundation, Inc.
22b75d0a
DM		 3
4 This file is part of BFD, the Binary File Descriptor library.
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
cd123cb7 8 the Free Software Foundation; either version 3 of the License, or
22b75d0a
DM		 9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
cd123cb7
NC		 18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
19 MA 02110-1301, USA. */
20
22b75d0a
DM		 21
22/* This file handles functionality common to the different SPARC ABI's. */
23
22b75d0a 24#include "sysdep.h"
3db64b00 25#include "bfd.h"
22b75d0a
DM		 26#include "bfdlink.h"
27#include "libbfd.h"
910600e9 28#include "libiberty.h"
22b75d0a
DM		 29#include "elf-bfd.h"
30#include "elf/sparc.h"
31#include "opcode/sparc.h"
32#include "elfxx-sparc.h"
910600e9 33#include "elf-vxworks.h"
d0c9aeb3
DM		 34#include "objalloc.h"
35#include "hashtab.h"
22b75d0a
DM		 36
37/* In case we're on a 32-bit machine, construct a 64-bit "-1" value. */
38#define MINUS_ONE (~ (bfd_vma) 0)
39
40#define ABI_64_P(abfd) \
41 (get_elf_backend_data (abfd)->s->elfclass == ELFCLASS64)
42
43/* The relocation "howto" table. */
44
45/* Utility for performing the standard initial work of an instruction
46 relocation.
47 *PRELOCATION will contain the relocated item.
48 *PINSN will contain the instruction from the input stream.
49 If the result is `bfd_reloc_other' the caller can continue with
50 performing the relocation. Otherwise it must stop and return the
51 value to its caller. */
52
53static bfd_reloc_status_type
54init_insn_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2c3fc389 55 void * data, asection *input_section, bfd *output_bfd,
22b75d0a
DM		 56 bfd_vma *prelocation, bfd_vma *pinsn)
57{
58 bfd_vma relocation;
59 reloc_howto_type *howto = reloc_entry->howto;
60
61 if (output_bfd != (bfd *) NULL
62 && (symbol->flags & BSF_SECTION_SYM) == 0
63 && (! howto->partial_inplace
64 || reloc_entry->addend == 0))
65 {
66 reloc_entry->address += input_section->output_offset;
67 return bfd_reloc_ok;
68 }
69
70 /* This works because partial_inplace is FALSE. */
71 if (output_bfd != NULL)
72 return bfd_reloc_continue;
73
74 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
75 return bfd_reloc_outofrange;
76
77 relocation = (symbol->value
78 + symbol->section->output_section->vma
79 + symbol->section->output_offset);
80 relocation += reloc_entry->addend;
81 if (howto->pc_relative)
82 {
83 relocation -= (input_section->output_section->vma
84 + input_section->output_offset);
85 relocation -= reloc_entry->address;
86 }
87
88 *prelocation = relocation;
89 *pinsn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
90 return bfd_reloc_other;
91}
92
93/* For unsupported relocs. */
94
95static bfd_reloc_status_type
96sparc_elf_notsup_reloc (bfd *abfd ATTRIBUTE_UNUSED,
97 arelent *reloc_entry ATTRIBUTE_UNUSED,
98 asymbol *symbol ATTRIBUTE_UNUSED,
2c3fc389 99 void * data ATTRIBUTE_UNUSED,
22b75d0a
DM		 100 asection *input_section ATTRIBUTE_UNUSED,
101 bfd *output_bfd ATTRIBUTE_UNUSED,
102 char **error_message ATTRIBUTE_UNUSED)
103{
104 return bfd_reloc_notsupported;
105}
106
107/* Handle the WDISP16 reloc. */
108
109static bfd_reloc_status_type
110sparc_elf_wdisp16_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2c3fc389 111 void * data, asection *input_section, bfd *output_bfd,
22b75d0a
DM		 112 char **error_message ATTRIBUTE_UNUSED)
113{
114 bfd_vma relocation;
115 bfd_vma insn;
116 bfd_reloc_status_type status;
117
118 status = init_insn_reloc (abfd, reloc_entry, symbol, data,
119 input_section, output_bfd, &relocation, &insn);
120 if (status != bfd_reloc_other)
121 return status;
122
123 insn &= ~ (bfd_vma) 0x303fff;
124 insn |= (((relocation >> 2) & 0xc000) << 6) | ((relocation >> 2) & 0x3fff);
125 bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
126
127 if ((bfd_signed_vma) relocation < - 0x40000
128 || (bfd_signed_vma) relocation > 0x3ffff)
129 return bfd_reloc_overflow;
130 else
131 return bfd_reloc_ok;
132}
133
2615994e
DM		 134/* Handle the WDISP10 reloc. */
135
136static bfd_reloc_status_type
137sparc_elf_wdisp10_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2c3fc389 138 void * data, asection *input_section, bfd *output_bfd,
2615994e
DM		 139 char **error_message ATTRIBUTE_UNUSED)
140{
141 bfd_vma relocation;
142 bfd_vma insn;
143 bfd_reloc_status_type status;
144
145 status = init_insn_reloc (abfd, reloc_entry, symbol, data,
146 input_section, output_bfd, &relocation, &insn);
147 if (status != bfd_reloc_other)
148 return status;
149
150 insn &= ~ (bfd_vma) 0x181fe0;
151 insn |= (((relocation >> 2) & 0x300) << 11)
152 | (((relocation >> 2) & 0xff) << 5);
153 bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
154
155 if ((bfd_signed_vma) relocation < - 0x1000
156 || (bfd_signed_vma) relocation > 0xfff)
157 return bfd_reloc_overflow;
158 else
159 return bfd_reloc_ok;
160}
161
22b75d0a
DM		 162/* Handle the HIX22 reloc. */
163
164static bfd_reloc_status_type
165sparc_elf_hix22_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2c3fc389 166 void * data, asection *input_section, bfd *output_bfd,
22b75d0a
DM		 167 char **error_message ATTRIBUTE_UNUSED)
168{
169 bfd_vma relocation;
170 bfd_vma insn;
171 bfd_reloc_status_type status;
172
173 status = init_insn_reloc (abfd, reloc_entry, symbol, data,
174 input_section, output_bfd, &relocation, &insn);
175 if (status != bfd_reloc_other)
176 return status;
177
178 relocation ^= MINUS_ONE;
179 insn = (insn &~ (bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
180 bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
181
182 if ((relocation & ~ (bfd_vma) 0xffffffff) != 0)
183 return bfd_reloc_overflow;
184 else
185 return bfd_reloc_ok;
186}
187
188/* Handle the LOX10 reloc. */
189
190static bfd_reloc_status_type
191sparc_elf_lox10_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2c3fc389 192 void * data, asection *input_section, bfd *output_bfd,
22b75d0a
DM		 193 char **error_message ATTRIBUTE_UNUSED)
194{
195 bfd_vma relocation;
196 bfd_vma insn;
197 bfd_reloc_status_type status;
198
199 status = init_insn_reloc (abfd, reloc_entry, symbol, data,
200 input_section, output_bfd, &relocation, &insn);
201 if (status != bfd_reloc_other)
202 return status;
203
204 insn = (insn &~ (bfd_vma) 0x1fff) | 0x1c00 | (relocation & 0x3ff);
205 bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
206
207 return bfd_reloc_ok;
208}
209
210static reloc_howto_type _bfd_sparc_elf_howto_table[] =
211{
07d6d2b8
AM		 212 HOWTO(R_SPARC_NONE, 0,3, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", FALSE,0,0x00000000,TRUE),
213 HOWTO(R_SPARC_8, 0,0, 8,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_8", FALSE,0,0x000000ff,TRUE),
214 HOWTO(R_SPARC_16, 0,1,16,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_16", FALSE,0,0x0000ffff,TRUE),
215 HOWTO(R_SPARC_32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_32", FALSE,0,0xffffffff,TRUE),
216 HOWTO(R_SPARC_DISP8, 0,0, 8,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP8", FALSE,0,0x000000ff,TRUE),
217 HOWTO(R_SPARC_DISP16, 0,1,16,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP16", FALSE,0,0x0000ffff,TRUE),
218 HOWTO(R_SPARC_DISP32, 0,2,32,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP32", FALSE,0,0xffffffff,TRUE),
22b75d0a
DM		 219 HOWTO(R_SPARC_WDISP30, 2,2,30,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP30", FALSE,0,0x3fffffff,TRUE),
220 HOWTO(R_SPARC_WDISP22, 2,2,22,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP22", FALSE,0,0x003fffff,TRUE),
07d6d2b8
AM		 221 HOWTO(R_SPARC_HI22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HI22", FALSE,0,0x003fffff,TRUE),
222 HOWTO(R_SPARC_22, 0,2,22,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_22", FALSE,0,0x003fffff,TRUE),
223 HOWTO(R_SPARC_13, 0,2,13,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_13", FALSE,0,0x00001fff,TRUE),
224 HOWTO(R_SPARC_LO10, 0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LO10", FALSE,0,0x000003ff,TRUE),
225 HOWTO(R_SPARC_GOT10, 0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT10", FALSE,0,0x000003ff,TRUE),
226 HOWTO(R_SPARC_GOT13, 0,2,13,FALSE,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_GOT13", FALSE,0,0x00001fff,TRUE),
227 HOWTO(R_SPARC_GOT22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT22", FALSE,0,0x003fffff,TRUE),
228 HOWTO(R_SPARC_PC10, 0,2,10,TRUE, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC10", FALSE,0,0x000003ff,TRUE),
229 HOWTO(R_SPARC_PC22, 10,2,22,TRUE, 0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PC22", FALSE,0,0x003fffff,TRUE),
230 HOWTO(R_SPARC_WPLT30, 2,2,30,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WPLT30", FALSE,0,0x3fffffff,TRUE),
231 HOWTO(R_SPARC_COPY, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_COPY", FALSE,0,0x00000000,TRUE),
22b75d0a
DM		 232 HOWTO(R_SPARC_GLOB_DAT, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GLOB_DAT",FALSE,0,0x00000000,TRUE),
233 HOWTO(R_SPARC_JMP_SLOT, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_JMP_SLOT",FALSE,0,0x00000000,TRUE),
234 HOWTO(R_SPARC_RELATIVE, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_RELATIVE",FALSE,0,0x00000000,TRUE),
07d6d2b8
AM		 235 HOWTO(R_SPARC_UA32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA32", FALSE,0,0xffffffff,TRUE),
236 HOWTO(R_SPARC_PLT32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PLT32", FALSE,0,0xffffffff,TRUE),
237 HOWTO(R_SPARC_HIPLT22, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_HIPLT22", FALSE,0,0x00000000,TRUE),
238 HOWTO(R_SPARC_LOPLT10, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_LOPLT10", FALSE,0,0x00000000,TRUE),
239 HOWTO(R_SPARC_PCPLT32, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT32", FALSE,0,0x00000000,TRUE),
240 HOWTO(R_SPARC_PCPLT22, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT22", FALSE,0,0x00000000,TRUE),
241 HOWTO(R_SPARC_PCPLT10, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT10", FALSE,0,0x00000000,TRUE),
242 HOWTO(R_SPARC_10, 0,2,10,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_10", FALSE,0,0x000003ff,TRUE),
243 HOWTO(R_SPARC_11, 0,2,11,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_11", FALSE,0,0x000007ff,TRUE),
244 HOWTO(R_SPARC_64, 0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_64", FALSE,0,MINUS_ONE, TRUE),
245 HOWTO(R_SPARC_OLO10, 0,2,13,FALSE,0,complain_overflow_signed, sparc_elf_notsup_reloc, "R_SPARC_OLO10", FALSE,0,0x00001fff,TRUE),
246 HOWTO(R_SPARC_HH22, 42,2,22,FALSE,0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_HH22", FALSE,0,0x003fffff,TRUE),
247 HOWTO(R_SPARC_HM10, 32,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HM10", FALSE,0,0x000003ff,TRUE),
248 HOWTO(R_SPARC_LM22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LM22", FALSE,0,0x003fffff,TRUE),
249 HOWTO(R_SPARC_PC_HH22, 42,2,22,TRUE, 0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_PC_HH22", FALSE,0,0x003fffff,TRUE),
250 HOWTO(R_SPARC_PC_HM10, 32,2,10,TRUE, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC_HM10", FALSE,0,0x000003ff,TRUE),
251 HOWTO(R_SPARC_PC_LM22, 10,2,22,TRUE, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC_LM22", FALSE,0,0x003fffff,TRUE),
22b75d0a
DM		 252 HOWTO(R_SPARC_WDISP16, 2,2,16,TRUE, 0,complain_overflow_signed, sparc_elf_wdisp16_reloc,"R_SPARC_WDISP16", FALSE,0,0x00000000,TRUE),
253 HOWTO(R_SPARC_WDISP19, 2,2,19,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP19", FALSE,0,0x0007ffff,TRUE),
254 HOWTO(R_SPARC_UNUSED_42, 0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_UNUSED_42",FALSE,0,0x00000000,TRUE),
07d6d2b8
AM		 255 HOWTO(R_SPARC_7, 0,2, 7,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_7", FALSE,0,0x0000007f,TRUE),
256 HOWTO(R_SPARC_5, 0,2, 5,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_5", FALSE,0,0x0000001f,TRUE),
257 HOWTO(R_SPARC_6, 0,2, 6,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_6", FALSE,0,0x0000003f,TRUE),
258 HOWTO(R_SPARC_DISP64, 0,4,64,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP64", FALSE,0,MINUS_ONE, TRUE),
259 HOWTO(R_SPARC_PLT64, 0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PLT64", FALSE,0,MINUS_ONE, TRUE),
260 HOWTO(R_SPARC_HIX22, 0,4, 0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc, "R_SPARC_HIX22", FALSE,0,MINUS_ONE, FALSE),
261 HOWTO(R_SPARC_LOX10, 0,4, 0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_LOX10", FALSE,0,MINUS_ONE, FALSE),
262 HOWTO(R_SPARC_H44, 22,2,22,FALSE,0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_H44", FALSE,0,0x003fffff,FALSE),
263 HOWTO(R_SPARC_M44, 12,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_M44", FALSE,0,0x000003ff,FALSE),
264 HOWTO(R_SPARC_L44, 0,2,13,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_L44", FALSE,0,0x00000fff,FALSE),
22b75d0a 265 HOWTO(R_SPARC_REGISTER, 0,4, 0,FALSE,0,complain_overflow_bitfield,sparc_elf_notsup_reloc, "R_SPARC_REGISTER",FALSE,0,MINUS_ONE, FALSE),
07d6d2b8
AM		 266 HOWTO(R_SPARC_UA64, 0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA64", FALSE,0,MINUS_ONE, TRUE),
267 HOWTO(R_SPARC_UA16, 0,1,16,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA16", FALSE,0,0x0000ffff,TRUE),
22b75d0a
DM		 268 HOWTO(R_SPARC_TLS_GD_HI22,10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_HI22",FALSE,0,0x003fffff,TRUE),
269 HOWTO(R_SPARC_TLS_GD_LO10,0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_LO10",FALSE,0,0x000003ff,TRUE),
270 HOWTO(R_SPARC_TLS_GD_ADD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_ADD",FALSE,0,0x00000000,TRUE),
271 HOWTO(R_SPARC_TLS_GD_CALL,2,2,30,TRUE,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_CALL",FALSE,0,0x3fffffff,TRUE),
272 HOWTO(R_SPARC_TLS_LDM_HI22,10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_HI22",FALSE,0,0x003fffff,TRUE),
273 HOWTO(R_SPARC_TLS_LDM_LO10,0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_LO10",FALSE,0,0x000003ff,TRUE),
274 HOWTO(R_SPARC_TLS_LDM_ADD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_ADD",FALSE,0,0x00000000,TRUE),
275 HOWTO(R_SPARC_TLS_LDM_CALL,2,2,30,TRUE,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_CALL",FALSE,0,0x3fffffff,TRUE),
276 HOWTO(R_SPARC_TLS_LDO_HIX22,0,2,0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc,"R_SPARC_TLS_LDO_HIX22",FALSE,0,0x003fffff, FALSE),
277 HOWTO(R_SPARC_TLS_LDO_LOX10,0,2,0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_TLS_LDO_LOX10",FALSE,0,0x000003ff, FALSE),
278 HOWTO(R_SPARC_TLS_LDO_ADD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDO_ADD",FALSE,0,0x00000000,TRUE),
279 HOWTO(R_SPARC_TLS_IE_HI22,10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_HI22",FALSE,0,0x003fffff,TRUE),
280 HOWTO(R_SPARC_TLS_IE_LO10,0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_LO10",FALSE,0,0x000003ff,TRUE),
281 HOWTO(R_SPARC_TLS_IE_LD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_LD",FALSE,0,0x00000000,TRUE),
282 HOWTO(R_SPARC_TLS_IE_LDX,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_LDX",FALSE,0,0x00000000,TRUE),
283 HOWTO(R_SPARC_TLS_IE_ADD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_ADD",FALSE,0,0x00000000,TRUE),
284 HOWTO(R_SPARC_TLS_LE_HIX22,0,2,0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc, "R_SPARC_TLS_LE_HIX22",FALSE,0,0x003fffff, FALSE),
285 HOWTO(R_SPARC_TLS_LE_LOX10,0,2,0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_TLS_LE_LOX10",FALSE,0,0x000003ff, FALSE),
286 HOWTO(R_SPARC_TLS_DTPMOD32,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_DTPMOD32",FALSE,0,0x00000000,TRUE),
287 HOWTO(R_SPARC_TLS_DTPMOD64,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_DTPMOD64",FALSE,0,0x00000000,TRUE),
288 HOWTO(R_SPARC_TLS_DTPOFF32,0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_TLS_DTPOFF32",FALSE,0,0xffffffff,TRUE),
289 HOWTO(R_SPARC_TLS_DTPOFF64,0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_TLS_DTPOFF64",FALSE,0,MINUS_ONE,TRUE),
290 HOWTO(R_SPARC_TLS_TPOFF32,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_TPOFF32",FALSE,0,0x00000000,TRUE),
739f7f82
DM		 291 HOWTO(R_SPARC_TLS_TPOFF64,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_TPOFF64",FALSE,0,0x00000000,TRUE),
292 HOWTO(R_SPARC_GOTDATA_HIX22,0,2,0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc,"R_SPARC_GOTDATA_HIX22",FALSE,0,0x003fffff, FALSE),
293 HOWTO(R_SPARC_GOTDATA_LOX10,0,2,0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_GOTDATA_LOX10",FALSE,0,0x000003ff, FALSE),
294 HOWTO(R_SPARC_GOTDATA_OP_HIX22,0,2,0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc,"R_SPARC_GOTDATA_OP_HIX22",FALSE,0,0x003fffff, FALSE),
07d6d2b8 295 HOWTO(R_SPARC_GOTDATA_OP_LOX10,0,2,0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_GOTDATA_OP_LOX10",FALSE,0,0x000003ff, FALSE),
739f7f82 296 HOWTO(R_SPARC_GOTDATA_OP,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOTDATA_OP",FALSE,0,0x00000000,TRUE),
2615994e
DM		 297 HOWTO(R_SPARC_H34,12,2,22,FALSE,0,complain_overflow_unsigned,bfd_elf_generic_reloc,"R_SPARC_H34",FALSE,0,0x003fffff,FALSE),
298 HOWTO(R_SPARC_SIZE32,0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_SIZE32",FALSE,0,0xffffffff,TRUE),
299 HOWTO(R_SPARC_SIZE64,0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_SIZE64",FALSE,0,MINUS_ONE, TRUE),
300 HOWTO(R_SPARC_WDISP10,2,2,10,TRUE, 0,complain_overflow_signed,sparc_elf_wdisp10_reloc,"R_SPARC_WDISP10",FALSE,0,0x00000000,TRUE),
22b75d0a 301};
d0c9aeb3
DM		 302static reloc_howto_type sparc_jmp_irel_howto =
303 HOWTO(R_SPARC_JMP_IREL, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_JMP_IREL",FALSE,0,0x00000000,TRUE);
304static reloc_howto_type sparc_irelative_howto =
305 HOWTO(R_SPARC_IRELATIVE, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_IRELATIVE",FALSE,0,0x00000000,TRUE);
22b75d0a
DM		 306static reloc_howto_type sparc_vtinherit_howto =
307 HOWTO (R_SPARC_GNU_VTINHERIT, 0,2,0,FALSE,0,complain_overflow_dont, NULL, "R_SPARC_GNU_VTINHERIT", FALSE,0, 0, FALSE);
308static reloc_howto_type sparc_vtentry_howto =
309 HOWTO (R_SPARC_GNU_VTENTRY, 0,2,0,FALSE,0,complain_overflow_dont, _bfd_elf_rel_vtable_reloc_fn,"R_SPARC_GNU_VTENTRY", FALSE,0,0, FALSE);
310static reloc_howto_type sparc_rev32_howto =
311 HOWTO(R_SPARC_REV32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_REV32", FALSE,0,0xffffffff,TRUE);
312
22b75d0a
DM		 313reloc_howto_type *
314_bfd_sparc_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
315 bfd_reloc_code_real_type code)
316{
679b7c76
DM		 317 /* We explicitly handle each relocation type in the switch
318 instead of using a lookup table for efficiency. */
22b75d0a
DM		 319 switch (code)
320 {
679b7c76
DM		 321 case BFD_RELOC_NONE:
322 return &_bfd_sparc_elf_howto_table[R_SPARC_NONE];
323
324 case BFD_RELOC_8:
325 return &_bfd_sparc_elf_howto_table[R_SPARC_8];
326
327 case BFD_RELOC_16:
328 return &_bfd_sparc_elf_howto_table[R_SPARC_16];
329
330 case BFD_RELOC_32:
331 return &_bfd_sparc_elf_howto_table[R_SPARC_32];
332
333 case BFD_RELOC_8_PCREL:
334 return &_bfd_sparc_elf_howto_table[R_SPARC_DISP8];
335
336 case BFD_RELOC_16_PCREL:
337 return &_bfd_sparc_elf_howto_table[R_SPARC_DISP16];
338
339 case BFD_RELOC_32_PCREL:
340 return &_bfd_sparc_elf_howto_table[R_SPARC_DISP32];
341
342 case BFD_RELOC_32_PCREL_S2:
343 return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP30];
344
345 case BFD_RELOC_SPARC_WDISP22:
346 return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP22];
347
348 case BFD_RELOC_HI22:
349 return &_bfd_sparc_elf_howto_table[R_SPARC_HI22];
350
351 case BFD_RELOC_SPARC22:
352 return &_bfd_sparc_elf_howto_table[R_SPARC_22];
353
354 case BFD_RELOC_SPARC13:
355 return &_bfd_sparc_elf_howto_table[R_SPARC_13];
356
357 case BFD_RELOC_LO10:
358 return &_bfd_sparc_elf_howto_table[R_SPARC_LO10];
359
360 case BFD_RELOC_SPARC_GOT10:
361 return &_bfd_sparc_elf_howto_table[R_SPARC_GOT10];
362
363 case BFD_RELOC_SPARC_GOT13:
364 return &_bfd_sparc_elf_howto_table[R_SPARC_GOT13];
365
366 case BFD_RELOC_SPARC_GOT22:
367 return &_bfd_sparc_elf_howto_table[R_SPARC_GOT22];
368
369 case BFD_RELOC_SPARC_PC10:
370 return &_bfd_sparc_elf_howto_table[R_SPARC_PC10];
371
372 case BFD_RELOC_SPARC_PC22:
373 return &_bfd_sparc_elf_howto_table[R_SPARC_PC22];
374
375 case BFD_RELOC_SPARC_WPLT30:
376 return &_bfd_sparc_elf_howto_table[R_SPARC_WPLT30];
377
378 case BFD_RELOC_SPARC_COPY:
379 return &_bfd_sparc_elf_howto_table[R_SPARC_COPY];
380
381 case BFD_RELOC_SPARC_GLOB_DAT:
382 return &_bfd_sparc_elf_howto_table[R_SPARC_GLOB_DAT];
383
384 case BFD_RELOC_SPARC_JMP_SLOT:
385 return &_bfd_sparc_elf_howto_table[R_SPARC_JMP_SLOT];
386
387 case BFD_RELOC_SPARC_RELATIVE:
388 return &_bfd_sparc_elf_howto_table[R_SPARC_RELATIVE];
389
390 case BFD_RELOC_SPARC_UA32:
391 return &_bfd_sparc_elf_howto_table[R_SPARC_UA32];
392
393 case BFD_RELOC_SPARC_PLT32:
394 return &_bfd_sparc_elf_howto_table[R_SPARC_PLT32];
395
396 case BFD_RELOC_SPARC_10:
397 return &_bfd_sparc_elf_howto_table[R_SPARC_10];
398
399 case BFD_RELOC_SPARC_11:
400 return &_bfd_sparc_elf_howto_table[R_SPARC_11];
401
402 case BFD_RELOC_SPARC_64:
403 return &_bfd_sparc_elf_howto_table[R_SPARC_64];
404
405 case BFD_RELOC_SPARC_OLO10:
406 return &_bfd_sparc_elf_howto_table[R_SPARC_OLO10];
407
408 case BFD_RELOC_SPARC_HH22:
409 return &_bfd_sparc_elf_howto_table[R_SPARC_HH22];
410
411 case BFD_RELOC_SPARC_HM10:
412 return &_bfd_sparc_elf_howto_table[R_SPARC_HM10];
413
414 case BFD_RELOC_SPARC_LM22:
415 return &_bfd_sparc_elf_howto_table[R_SPARC_LM22];
416
417 case BFD_RELOC_SPARC_PC_HH22:
418 return &_bfd_sparc_elf_howto_table[R_SPARC_PC_HH22];
419
420 case BFD_RELOC_SPARC_PC_HM10:
421 return &_bfd_sparc_elf_howto_table[R_SPARC_PC_HM10];
422
423 case BFD_RELOC_SPARC_PC_LM22:
424 return &_bfd_sparc_elf_howto_table[R_SPARC_PC_LM22];
425
426 case BFD_RELOC_SPARC_WDISP16:
427 return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP16];
428
429 case BFD_RELOC_SPARC_WDISP19:
430 return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP19];
431
432 case BFD_RELOC_SPARC_7:
433 return &_bfd_sparc_elf_howto_table[R_SPARC_7];
434
435 case BFD_RELOC_SPARC_5:
436 return &_bfd_sparc_elf_howto_table[R_SPARC_5];
437
438 case BFD_RELOC_SPARC_6:
439 return &_bfd_sparc_elf_howto_table[R_SPARC_6];
440
441 case BFD_RELOC_SPARC_DISP64:
442 return &_bfd_sparc_elf_howto_table[R_SPARC_DISP64];
443
444 case BFD_RELOC_SPARC_PLT64:
445 return &_bfd_sparc_elf_howto_table[R_SPARC_PLT64];
446
447 case BFD_RELOC_SPARC_HIX22:
448 return &_bfd_sparc_elf_howto_table[R_SPARC_HIX22];
449
450 case BFD_RELOC_SPARC_LOX10:
451 return &_bfd_sparc_elf_howto_table[R_SPARC_LOX10];
452
453 case BFD_RELOC_SPARC_H44:
454 return &_bfd_sparc_elf_howto_table[R_SPARC_H44];
455
456 case BFD_RELOC_SPARC_M44:
457 return &_bfd_sparc_elf_howto_table[R_SPARC_M44];
458
459 case BFD_RELOC_SPARC_L44:
460 return &_bfd_sparc_elf_howto_table[R_SPARC_L44];
461
462 case BFD_RELOC_SPARC_REGISTER:
463 return &_bfd_sparc_elf_howto_table[R_SPARC_REGISTER];
464
465 case BFD_RELOC_SPARC_UA64:
466 return &_bfd_sparc_elf_howto_table[R_SPARC_UA64];
467
468 case BFD_RELOC_SPARC_UA16:
469 return &_bfd_sparc_elf_howto_table[R_SPARC_UA16];
470
471 case BFD_RELOC_SPARC_TLS_GD_HI22:
472 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_GD_HI22];
473
474 case BFD_RELOC_SPARC_TLS_GD_LO10:
475 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_GD_LO10];
476
477 case BFD_RELOC_SPARC_TLS_GD_ADD:
478 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_GD_ADD];
479
480 case BFD_RELOC_SPARC_TLS_GD_CALL:
481 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_GD_CALL];
482
483 case BFD_RELOC_SPARC_TLS_LDM_HI22:
484 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDM_HI22];
485
486 case BFD_RELOC_SPARC_TLS_LDM_LO10:
487 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDM_LO10];
488
489 case BFD_RELOC_SPARC_TLS_LDM_ADD:
490 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDM_ADD];
491
492 case BFD_RELOC_SPARC_TLS_LDM_CALL:
493 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDM_CALL];
494
495 case BFD_RELOC_SPARC_TLS_LDO_HIX22:
496 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDO_HIX22];
497
498 case BFD_RELOC_SPARC_TLS_LDO_LOX10:
499 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDO_LOX10];
500
501 case BFD_RELOC_SPARC_TLS_LDO_ADD:
502 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDO_ADD];
503
504 case BFD_RELOC_SPARC_TLS_IE_HI22:
505 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_HI22];
506
507 case BFD_RELOC_SPARC_TLS_IE_LO10:
508 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_LO10];
509
510 case BFD_RELOC_SPARC_TLS_IE_LD:
511 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_LD];
512
513 case BFD_RELOC_SPARC_TLS_IE_LDX:
514 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_LDX];
515
516 case BFD_RELOC_SPARC_TLS_IE_ADD:
517 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_ADD];
518
519 case BFD_RELOC_SPARC_TLS_LE_HIX22:
520 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LE_HIX22];
521
522 case BFD_RELOC_SPARC_TLS_LE_LOX10:
523 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LE_LOX10];
524
525 case BFD_RELOC_SPARC_TLS_DTPMOD32:
526 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_DTPMOD32];
527
528 case BFD_RELOC_SPARC_TLS_DTPMOD64:
529 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_DTPMOD64];
530
531 case BFD_RELOC_SPARC_TLS_DTPOFF32:
532 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_DTPOFF32];
533
534 case BFD_RELOC_SPARC_TLS_DTPOFF64:
535 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_DTPOFF64];
536
537 case BFD_RELOC_SPARC_TLS_TPOFF32:
538 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_TPOFF32];
539
540 case BFD_RELOC_SPARC_TLS_TPOFF64:
541 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_TPOFF64];
542
543 case BFD_RELOC_SPARC_GOTDATA_HIX22:
544 return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_HIX22];
545
546 case BFD_RELOC_SPARC_GOTDATA_LOX10:
547 return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_LOX10];
548
549 case BFD_RELOC_SPARC_GOTDATA_OP_HIX22:
550 return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_OP_HIX22];
551
552 case BFD_RELOC_SPARC_GOTDATA_OP_LOX10:
553 return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_OP_LOX10];
554
555 case BFD_RELOC_SPARC_GOTDATA_OP:
556 return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_OP];
557
2615994e
DM		 558 case BFD_RELOC_SPARC_H34:
559 return &_bfd_sparc_elf_howto_table[R_SPARC_H34];
560
561 case BFD_RELOC_SPARC_SIZE32:
562 return &_bfd_sparc_elf_howto_table[R_SPARC_SIZE32];
563
564 case BFD_RELOC_SPARC_SIZE64:
565 return &_bfd_sparc_elf_howto_table[R_SPARC_SIZE64];
566
567 case BFD_RELOC_SPARC_WDISP10:
568 return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP10];
569
d0c9aeb3
DM		 570 case BFD_RELOC_SPARC_JMP_IREL:
571 return &sparc_jmp_irel_howto;
572
573 case BFD_RELOC_SPARC_IRELATIVE:
574 return &sparc_irelative_howto;
575
22b75d0a
DM		 576 case BFD_RELOC_VTABLE_INHERIT:
577 return &sparc_vtinherit_howto;
578
579 case BFD_RELOC_VTABLE_ENTRY:
580 return &sparc_vtentry_howto;
581
582 case BFD_RELOC_SPARC_REV32:
583 return &sparc_rev32_howto;
584
585 default:
679b7c76 586 break;
22b75d0a
DM		 587 }
588 bfd_set_error (bfd_error_bad_value);
589 return NULL;
590}
591
157090f7
AM		 592reloc_howto_type *
593_bfd_sparc_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
594 const char *r_name)
595{
596 unsigned int i;
597
598 for (i = 0;
599 i < (sizeof (_bfd_sparc_elf_howto_table)
600 / sizeof (_bfd_sparc_elf_howto_table[0]));
601 i++)
602 if (_bfd_sparc_elf_howto_table[i].name != NULL
603 && strcasecmp (_bfd_sparc_elf_howto_table[i].name, r_name) == 0)
604 return &_bfd_sparc_elf_howto_table[i];
605
606 if (strcasecmp (sparc_vtinherit_howto.name, r_name) == 0)
607 return &sparc_vtinherit_howto;
608 if (strcasecmp (sparc_vtentry_howto.name, r_name) == 0)
609 return &sparc_vtentry_howto;
610 if (strcasecmp (sparc_rev32_howto.name, r_name) == 0)
611 return &sparc_rev32_howto;
612
613 return NULL;
614}
615
22b75d0a
DM		 616reloc_howto_type *
617_bfd_sparc_elf_info_to_howto_ptr (unsigned int r_type)
618{
619 switch (r_type)
620 {
d0c9aeb3
DM		 621 case R_SPARC_JMP_IREL:
622 return &sparc_jmp_irel_howto;
623
624 case R_SPARC_IRELATIVE:
625 return &sparc_irelative_howto;
626
22b75d0a
DM		 627 case R_SPARC_GNU_VTINHERIT:
628 return &sparc_vtinherit_howto;
629
630 case R_SPARC_GNU_VTENTRY:
631 return &sparc_vtentry_howto;
632
633 case R_SPARC_REV32:
634 return &sparc_rev32_howto;
635
636 default:
d0fb9a8d
JJ		 637 if (r_type >= (unsigned int) R_SPARC_max_std)
638 {
4eca0228 639 _bfd_error_handler (_("invalid relocation type %d"), (int) r_type);
d0fb9a8d
JJ		 640 r_type = R_SPARC_NONE;
641 }
22b75d0a
DM		 642 return &_bfd_sparc_elf_howto_table[r_type];
643 }
644}
645
646/* Both 32-bit and 64-bit sparc encode this in an identical manner,
647 so just take advantage of that. */
648#define SPARC_ELF_R_TYPE(r_info) \
649 ((r_info) & 0xff)
650
651void
652_bfd_sparc_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr,
653 Elf_Internal_Rela *dst)
654{
655 unsigned int r_type = SPARC_ELF_R_TYPE (dst->r_info);
656
657 cache_ptr->howto = _bfd_sparc_elf_info_to_howto_ptr (r_type);
658}
659\f
660
661/* The nop opcode we use. */
662#define SPARC_NOP 0x01000000
663
664#define SPARC_INSN_BYTES 4
665
bb1dd176
QZ		 666/* Is an undefined weak symbol resolved to 0 ?
667 Reference to an undefined weak symbol is resolved to 0 when
668 building an executable if it isn't dynamic and
669 1. Has non-GOT/non-PLT relocations in text section.
670 Or
671 2. Has no GOT/PLT relocation. */
07d6d2b8
AM		 672#define UNDEFINED_WEAK_RESOLVED_TO_ZERO(INFO, EH) \
673 ((EH)->elf.root.type == bfd_link_hash_undefweak \
674 && bfd_link_executable (INFO) \
675 && (_bfd_sparc_elf_hash_table (INFO)->interp == NULL \
676 || !(EH)->has_got_reloc \
677 || (EH)->has_non_got_reloc \
bb1dd176
QZ		 678 || !(INFO)->dynamic_undefined_weak))
679
22b75d0a
DM		 680/* SPARC ELF linker hash entry. */
681
682struct _bfd_sparc_elf_link_hash_entry
683{
684 struct elf_link_hash_entry elf;
685
686 /* Track dynamic relocs copied for this symbol. */
3bf083ed 687 struct elf_dyn_relocs *dyn_relocs;
22b75d0a
DM		 688
689#define GOT_UNKNOWN 0
690#define GOT_NORMAL 1
691#define GOT_TLS_GD 2
692#define GOT_TLS_IE 3
693 unsigned char tls_type;
bb1dd176
QZ		 694
695 /* Symbol has GOT or PLT relocations. */
696 unsigned int has_got_reloc : 1;
697
698 /* Symbol has non-GOT/non-PLT relocations in text sections. */
699 unsigned int has_non_got_reloc : 1;
700
22b75d0a
DM		 701};
702
703#define _bfd_sparc_elf_hash_entry(ent) ((struct _bfd_sparc_elf_link_hash_entry *)(ent))
704
705struct _bfd_sparc_elf_obj_tdata
706{
707 struct elf_obj_tdata root;
708
709 /* tls_type for each local got entry. */
710 char *local_got_tls_type;
711
712 /* TRUE if TLS GD relocs has been seen for this object. */
713 bfd_boolean has_tlsgd;
714};
715
716#define _bfd_sparc_elf_tdata(abfd) \
717 ((struct _bfd_sparc_elf_obj_tdata *) (abfd)->tdata.any)
718
719#define _bfd_sparc_elf_local_got_tls_type(abfd) \
720 (_bfd_sparc_elf_tdata (abfd)->local_got_tls_type)
721
0ffa91dd
NC		 722#define is_sparc_elf(bfd) \
723 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
724 && elf_tdata (bfd) != NULL \
4dfe6ac6 725 && elf_object_id (bfd) == SPARC_ELF_DATA)
0ffa91dd 726
22b75d0a
DM		 727bfd_boolean
728_bfd_sparc_elf_mkobject (bfd *abfd)
729{
0ffa91dd 730 return bfd_elf_allocate_object (abfd, sizeof (struct _bfd_sparc_elf_obj_tdata),
4dfe6ac6 731 SPARC_ELF_DATA);
22b75d0a
DM		 732}
733
734static void
91d6fa6a 735sparc_put_word_32 (bfd *abfd, bfd_vma val, void *ptr)
22b75d0a 736{
91d6fa6a 737 bfd_put_32 (abfd, val, ptr);
22b75d0a
DM		 738}
739
740static void
91d6fa6a 741sparc_put_word_64 (bfd *abfd, bfd_vma val, void *ptr)
22b75d0a 742{
91d6fa6a 743 bfd_put_64 (abfd, val, ptr);
22b75d0a
DM		 744}
745
746static void
39817122 747sparc_elf_append_rela (bfd *abfd, asection *s, Elf_Internal_Rela *rel)
22b75d0a 748{
39817122
RS		 749 const struct elf_backend_data *bed;
750 bfd_byte *loc;
22b75d0a 751
39817122
RS		 752 bed = get_elf_backend_data (abfd);
753 loc = s->contents + (s->reloc_count++ * bed->s->sizeof_rela);
754 bed->s->swap_reloca_out (abfd, rel, loc);
22b75d0a
DM		 755}
756
757static bfd_vma
e459dc7b 758sparc_elf_r_info_64 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
91d6fa6a 759 bfd_vma rel_index ATTRIBUTE_UNUSED,
e459dc7b 760 bfd_vma type ATTRIBUTE_UNUSED)
22b75d0a 761{
91d6fa6a 762 return ELF64_R_INFO (rel_index,
22b75d0a
DM		 763 (in_rel ?
764 ELF64_R_TYPE_INFO (ELF64_R_TYPE_DATA (in_rel->r_info),
765 type) : type));
766}
767
768static bfd_vma
769sparc_elf_r_info_32 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
91d6fa6a 770 bfd_vma rel_index, bfd_vma type)
22b75d0a 771{
91d6fa6a 772 return ELF32_R_INFO (rel_index, type);
22b75d0a
DM		 773}
774
775static bfd_vma
776sparc_elf_r_symndx_64 (bfd_vma r_info)
777{
e8be8da4
DM		 778 bfd_vma r_symndx = ELF32_R_SYM (r_info);
779 return (r_symndx >> 24);
22b75d0a
DM		 780}
781
782static bfd_vma
783sparc_elf_r_symndx_32 (bfd_vma r_info)
784{
785 return ELF32_R_SYM (r_info);
786}
787
788/* PLT/GOT stuff */
789
790#define PLT32_ENTRY_SIZE 12
791#define PLT32_HEADER_SIZE (4 * PLT32_ENTRY_SIZE)
792
793/* The first four entries in a 32-bit procedure linkage table are reserved,
794 and the initial contents are unimportant (we zero them out).
795 Subsequent entries look like this. See the SVR4 ABI SPARC
796 supplement to see how this works. */
797
798/* sethi %hi(.-.plt0),%g1. We fill in the address later. */
799#define PLT32_ENTRY_WORD0 0x03000000
800/* b,a .plt0. We fill in the offset later. */
801#define PLT32_ENTRY_WORD1 0x30800000
802/* nop. */
803#define PLT32_ENTRY_WORD2 SPARC_NOP
804
805static int
806sparc32_plt_entry_build (bfd *output_bfd, asection *splt, bfd_vma offset,
807 bfd_vma max ATTRIBUTE_UNUSED,
808 bfd_vma *r_offset)
809{
810 bfd_put_32 (output_bfd,
811 PLT32_ENTRY_WORD0 + offset,
812 splt->contents + offset);
813 bfd_put_32 (output_bfd,
814 (PLT32_ENTRY_WORD1
815 + (((- (offset + 4)) >> 2) & 0x3fffff)),
816 splt->contents + offset + 4);
817 bfd_put_32 (output_bfd, (bfd_vma) PLT32_ENTRY_WORD2,
818 splt->contents + offset + 8);
819
820 *r_offset = offset;
821
822 return offset / PLT32_ENTRY_SIZE - 4;
823}
824
825/* Both the headers and the entries are icache aligned. */
826#define PLT64_ENTRY_SIZE 32
827#define PLT64_HEADER_SIZE (4 * PLT64_ENTRY_SIZE)
828#define PLT64_LARGE_THRESHOLD 32768
829
830static int
831sparc64_plt_entry_build (bfd *output_bfd, asection *splt, bfd_vma offset,
832 bfd_vma max, bfd_vma *r_offset)
833{
834 unsigned char *entry = splt->contents + offset;
835 const unsigned int nop = SPARC_NOP;
91d6fa6a 836 int plt_index;
22b75d0a
DM		 837
838 if (offset < (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE))
839 {
840 unsigned int sethi, ba;
841
842 *r_offset = offset;
843
91d6fa6a 844 plt_index = (offset / PLT64_ENTRY_SIZE);
22b75d0a 845
91d6fa6a 846 sethi = 0x03000000 | (plt_index * PLT64_ENTRY_SIZE);
22b75d0a
DM		 847 ba = 0x30680000
848 | (((splt->contents + PLT64_ENTRY_SIZE) - (entry + 4)) / 4 & 0x7ffff);
849
850 bfd_put_32 (output_bfd, (bfd_vma) sethi, entry);
851 bfd_put_32 (output_bfd, (bfd_vma) ba, entry + 4);
852 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 8);
853 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 12);
854 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 16);
855 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 20);
856 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 24);
857 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 28);
858 }
859 else
860 {
861 unsigned char *ptr;
862 unsigned int ldx;
863 int block, last_block, ofs, last_ofs, chunks_this_block;
864 const int insn_chunk_size = (6 * 4);
865 const int ptr_chunk_size = (1 * 8);
866 const int entries_per_block = 160;
867 const int block_size = entries_per_block * (insn_chunk_size
868 + ptr_chunk_size);
869
870 /* Entries 32768 and higher are grouped into blocks of 160.
871 The blocks are further subdivided into 160 sequences of
872 6 instructions and 160 pointers. If a block does not require
873 the full 160 entries, let's say it requires N, then there
874 will be N sequences of 6 instructions and N pointers. */
875
876 offset -= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE);
877 max -= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE);
878
879 block = offset / block_size;
880 last_block = max / block_size;
881 if (block != last_block)
882 {
883 chunks_this_block = 160;
884 }
885 else
886 {
887 last_ofs = max % block_size;
888 chunks_this_block = last_ofs / (insn_chunk_size + ptr_chunk_size);
889 }
890
891 ofs = offset % block_size;
892
91d6fa6a 893 plt_index = (PLT64_LARGE_THRESHOLD +
22b75d0a
DM		 894 (block * 160) +
895 (ofs / insn_chunk_size));
896
897 ptr = splt->contents
898 + (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE)
899 + (block * block_size)
900 + (chunks_this_block * insn_chunk_size)
901 + (ofs / insn_chunk_size) * ptr_chunk_size;
902
903 *r_offset = (bfd_vma) (ptr - splt->contents);
904
905 ldx = 0xc25be000 | ((ptr - (entry+4)) & 0x1fff);
906
907 /* mov %o7,%g5
908 call .+8
909 nop
910 ldx [%o7+P],%g1
911 jmpl %o7+%g1,%g1
912 mov %g5,%o7 */
913 bfd_put_32 (output_bfd, (bfd_vma) 0x8a10000f, entry);
914 bfd_put_32 (output_bfd, (bfd_vma) 0x40000002, entry + 4);
915 bfd_put_32 (output_bfd, (bfd_vma) SPARC_NOP, entry + 8);
07d6d2b8 916 bfd_put_32 (output_bfd, (bfd_vma) ldx, entry + 12);
22b75d0a
DM		 917 bfd_put_32 (output_bfd, (bfd_vma) 0x83c3c001, entry + 16);
918 bfd_put_32 (output_bfd, (bfd_vma) 0x9e100005, entry + 20);
919
920 bfd_put_64 (output_bfd, (bfd_vma) (splt->contents - (entry + 4)), ptr);
921 }
922
91d6fa6a 923 return plt_index - 4;
22b75d0a
DM		 924}
925
910600e9
RS		 926/* The format of the first PLT entry in a VxWorks executable. */
927static const bfd_vma sparc_vxworks_exec_plt0_entry[] =
928 {
929 0x05000000, /* sethi %hi(_GLOBAL_OFFSET_TABLE_+8), %g2 */
930 0x8410a000, /* or %g2, %lo(_GLOBAL_OFFSET_TABLE_+8), %g2 */
931 0xc4008000, /* ld [ %g2 ], %g2 */
932 0x81c08000, /* jmp %g2 */
933 0x01000000 /* nop */
934 };
935
936/* The format of subsequent PLT entries. */
937static const bfd_vma sparc_vxworks_exec_plt_entry[] =
938 {
939 0x03000000, /* sethi %hi(_GLOBAL_OFFSET_TABLE_+f@got), %g1 */
940 0x82106000, /* or %g1, %lo(_GLOBAL_OFFSET_TABLE_+f@got), %g1 */
941 0xc2004000, /* ld [ %g1 ], %g1 */
942 0x81c04000, /* jmp %g1 */
943 0x01000000, /* nop */
944 0x03000000, /* sethi %hi(f@pltindex), %g1 */
945 0x10800000, /* b _PLT_resolve */
946 0x82106000 /* or %g1, %lo(f@pltindex), %g1 */
947 };
948
949/* The format of the first PLT entry in a VxWorks shared object. */
950static const bfd_vma sparc_vxworks_shared_plt0_entry[] =
951 {
952 0xc405e008, /* ld [ %l7 + 8 ], %g2 */
953 0x81c08000, /* jmp %g2 */
954 0x01000000 /* nop */
955 };
956
957/* The format of subsequent PLT entries. */
958static const bfd_vma sparc_vxworks_shared_plt_entry[] =
959 {
960 0x03000000, /* sethi %hi(f@got), %g1 */
961 0x82106000, /* or %g1, %lo(f@got), %g1 */
962 0xc205c001, /* ld [ %l7 + %g1 ], %g1 */
963 0x81c04000, /* jmp %g1 */
964 0x01000000, /* nop */
965 0x03000000, /* sethi %hi(f@pltindex), %g1 */
966 0x10800000, /* b _PLT_resolve */
967 0x82106000 /* or %g1, %lo(f@pltindex), %g1 */
968 };
969
22b75d0a
DM		 970#define SPARC_ELF_PUT_WORD(htab, bfd, val, ptr) \
971 htab->put_word(bfd, val, ptr)
972
22b75d0a
DM		 973#define SPARC_ELF_R_INFO(htab, in_rel, index, type) \
974 htab->r_info(in_rel, index, type)
975
976#define SPARC_ELF_R_SYMNDX(htab, r_info) \
977 htab->r_symndx(r_info)
978
979#define SPARC_ELF_WORD_BYTES(htab) \
980 htab->bytes_per_word
981
982#define SPARC_ELF_RELA_BYTES(htab) \
983 htab->bytes_per_rela
984
985#define SPARC_ELF_DTPOFF_RELOC(htab) \
986 htab->dtpoff_reloc
987
988#define SPARC_ELF_DTPMOD_RELOC(htab) \
989 htab->dtpmod_reloc
990
991#define SPARC_ELF_TPOFF_RELOC(htab) \
992 htab->tpoff_reloc
993
994#define SPARC_ELF_BUILD_PLT_ENTRY(htab, obfd, splt, off, max, r_off) \
995 htab->build_plt_entry (obfd, splt, off, max, r_off)
996
997/* Create an entry in an SPARC ELF linker hash table. */
998
999static struct bfd_hash_entry *
1000link_hash_newfunc (struct bfd_hash_entry *entry,
1001 struct bfd_hash_table *table, const char *string)
1002{
1003 /* Allocate the structure if it has not already been allocated by a
1004 subclass. */
1005 if (entry == NULL)
1006 {
1007 entry = bfd_hash_allocate (table,
1008 sizeof (struct _bfd_sparc_elf_link_hash_entry));
1009 if (entry == NULL)
1010 return entry;
1011 }
1012
1013 /* Call the allocation method of the superclass. */
1014 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
1015 if (entry != NULL)
1016 {
1017 struct _bfd_sparc_elf_link_hash_entry *eh;
1018
1019 eh = (struct _bfd_sparc_elf_link_hash_entry *) entry;
1020 eh->dyn_relocs = NULL;
1021 eh->tls_type = GOT_UNKNOWN;
bb1dd176
QZ		 1022 eh->has_got_reloc = 0;
1023 eh->has_non_got_reloc = 0;
22b75d0a
DM		 1024 }
1025
1026 return entry;
1027}
1028
1029/* The name of the dynamic interpreter. This is put in the .interp
1030 section. */
1031
1032#define ELF32_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
1033#define ELF64_DYNAMIC_INTERPRETER "/usr/lib/sparcv9/ld.so.1"
1034
d0c9aeb3
DM		 1035/* Compute a hash of a local hash entry. We use elf_link_hash_entry
1036 for local symbol so that we can handle local STT_GNU_IFUNC symbols
1037 as global symbol. We reuse indx and dynstr_index for local symbol
1038 hash since they aren't used by global symbols in this backend. */
1039
1040static hashval_t
1041elf_sparc_local_htab_hash (const void *ptr)
1042{
1043 struct elf_link_hash_entry *h
1044 = (struct elf_link_hash_entry *) ptr;
1045 return ELF_LOCAL_SYMBOL_HASH (h->indx, h->dynstr_index);
1046}
1047
1048/* Compare local hash entries. */
1049
1050static int
1051elf_sparc_local_htab_eq (const void *ptr1, const void *ptr2)
1052{
1053 struct elf_link_hash_entry *h1
1054 = (struct elf_link_hash_entry *) ptr1;
1055 struct elf_link_hash_entry *h2
1056 = (struct elf_link_hash_entry *) ptr2;
1057
1058 return h1->indx == h2->indx && h1->dynstr_index == h2->dynstr_index;
1059}
1060
1061/* Find and/or create a hash entry for local symbol. */
1062
1063static struct elf_link_hash_entry *
1064elf_sparc_get_local_sym_hash (struct _bfd_sparc_elf_link_hash_table *htab,
1065 bfd *abfd, const Elf_Internal_Rela *rel,
1066 bfd_boolean create)
1067{
1068 struct _bfd_sparc_elf_link_hash_entry e, *ret;
1069 asection *sec = abfd->sections;
1070 unsigned long r_symndx;
1071 hashval_t h;
1072 void **slot;
1073
1074 r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
1075 h = ELF_LOCAL_SYMBOL_HASH (sec->id, r_symndx);
1076
1077 e.elf.indx = sec->id;
1078 e.elf.dynstr_index = r_symndx;
1079 slot = htab_find_slot_with_hash (htab->loc_hash_table, &e, h,
1080 create ? INSERT : NO_INSERT);
1081
1082 if (!slot)
1083 return NULL;
1084
1085 if (*slot)
1086 {
1087 ret = (struct _bfd_sparc_elf_link_hash_entry *) *slot;
1088 return &ret->elf;
1089 }
1090
1091 ret = (struct _bfd_sparc_elf_link_hash_entry *)
1092 objalloc_alloc ((struct objalloc *) htab->loc_hash_memory,
1093 sizeof (struct _bfd_sparc_elf_link_hash_entry));
1094 if (ret)
1095 {
1096 memset (ret, 0, sizeof (*ret));
1097 ret->elf.indx = sec->id;
1098 ret->elf.dynstr_index = r_symndx;
1099 ret->elf.dynindx = -1;
1100 ret->elf.plt.offset = (bfd_vma) -1;
1101 ret->elf.got.offset = (bfd_vma) -1;
1102 *slot = ret;
1103 }
1104 return &ret->elf;
1105}
1106
68faa637
AM		 1107/* Destroy a SPARC ELF linker hash table. */
1108
d495ab0d
AM		 1109static void
1110_bfd_sparc_elf_link_hash_table_free (bfd *obfd)
68faa637
AM		 1111{
1112 struct _bfd_sparc_elf_link_hash_table *htab
d495ab0d 1113 = (struct _bfd_sparc_elf_link_hash_table *) obfd->link.hash;
68faa637
AM		 1114
1115 if (htab->loc_hash_table)
1116 htab_delete (htab->loc_hash_table);
1117 if (htab->loc_hash_memory)
1118 objalloc_free ((struct objalloc *) htab->loc_hash_memory);
d495ab0d 1119 _bfd_elf_link_hash_table_free (obfd);
68faa637
AM		 1120}
1121
22b75d0a
DM		 1122/* Create a SPARC ELF linker hash table. */
1123
1124struct bfd_link_hash_table *
1125_bfd_sparc_elf_link_hash_table_create (bfd *abfd)
1126{
1127 struct _bfd_sparc_elf_link_hash_table *ret;
1128 bfd_size_type amt = sizeof (struct _bfd_sparc_elf_link_hash_table);
1129
1130 ret = (struct _bfd_sparc_elf_link_hash_table *) bfd_zmalloc (amt);
1131 if (ret == NULL)
1132 return NULL;
1133
1134 if (ABI_64_P (abfd))
1135 {
1136 ret->put_word = sparc_put_word_64;
22b75d0a
DM		 1137 ret->r_info = sparc_elf_r_info_64;
1138 ret->r_symndx = sparc_elf_r_symndx_64;
22b75d0a
DM		 1139 ret->dtpoff_reloc = R_SPARC_TLS_DTPOFF64;
1140 ret->dtpmod_reloc = R_SPARC_TLS_DTPMOD64;
1141 ret->tpoff_reloc = R_SPARC_TLS_TPOFF64;
1142 ret->word_align_power = 3;
1143 ret->align_power_max = 4;
1144 ret->bytes_per_word = 8;
1145 ret->bytes_per_rela = sizeof (Elf64_External_Rela);
c2e70a82 1146 ret->dynamic_interpreter = ELF64_DYNAMIC_INTERPRETER;
22b75d0a 1147 ret->dynamic_interpreter_size = sizeof ELF64_DYNAMIC_INTERPRETER;
d0c9aeb3
DM		 1148
1149 ret->build_plt_entry = sparc64_plt_entry_build;
1150 ret->plt_header_size = PLT64_HEADER_SIZE;
1151 ret->plt_entry_size = PLT64_ENTRY_SIZE;
22b75d0a
DM		 1152 }
1153 else
1154 {
1155 ret->put_word = sparc_put_word_32;
22b75d0a
DM		 1156 ret->r_info = sparc_elf_r_info_32;
1157 ret->r_symndx = sparc_elf_r_symndx_32;
22b75d0a
DM		 1158 ret->dtpoff_reloc = R_SPARC_TLS_DTPOFF32;
1159 ret->dtpmod_reloc = R_SPARC_TLS_DTPMOD32;
1160 ret->tpoff_reloc = R_SPARC_TLS_TPOFF32;
1161 ret->word_align_power = 2;
1162 ret->align_power_max = 3;
1163 ret->bytes_per_word = 4;
1164 ret->bytes_per_rela = sizeof (Elf32_External_Rela);
c2e70a82 1165 ret->dynamic_interpreter = ELF32_DYNAMIC_INTERPRETER;
22b75d0a 1166 ret->dynamic_interpreter_size = sizeof ELF32_DYNAMIC_INTERPRETER;
d0c9aeb3
DM		 1167
1168 ret->build_plt_entry = sparc32_plt_entry_build;
1169 ret->plt_header_size = PLT32_HEADER_SIZE;
1170 ret->plt_entry_size = PLT32_ENTRY_SIZE;
22b75d0a
DM		 1171 }
1172
66eb6687 1173 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc,
4dfe6ac6
NC		 1174 sizeof (struct _bfd_sparc_elf_link_hash_entry),
1175 SPARC_ELF_DATA))
22b75d0a
DM		 1176 {
1177 free (ret);
1178 return NULL;
1179 }
1180
d0c9aeb3
DM		 1181 ret->loc_hash_table = htab_try_create (1024,
1182 elf_sparc_local_htab_hash,
1183 elf_sparc_local_htab_eq,
1184 NULL);
1185 ret->loc_hash_memory = objalloc_create ();
1186 if (!ret->loc_hash_table || !ret->loc_hash_memory)
1187 {
d495ab0d 1188 _bfd_sparc_elf_link_hash_table_free (abfd);
d0c9aeb3
DM		 1189 return NULL;
1190 }
d495ab0d 1191 ret->elf.root.hash_table_free = _bfd_sparc_elf_link_hash_table_free;
d0c9aeb3 1192
22b75d0a
DM		 1193 return &ret->elf.root;
1194}
1195
22b75d0a
DM		 1196/* Create .plt, .rela.plt, .got, .rela.got, .dynbss, and
1197 .rela.bss sections in DYNOBJ, and set up shortcuts to them in our
1198 hash table. */
1199
1200bfd_boolean
1201_bfd_sparc_elf_create_dynamic_sections (bfd *dynobj,
1202 struct bfd_link_info *info)
1203{
1204 struct _bfd_sparc_elf_link_hash_table *htab;
1205
1206 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6
NC		 1207 BFD_ASSERT (htab != NULL);
1208
22b75d0a
DM		 1209 if (!_bfd_elf_create_dynamic_sections (dynobj, info))
1210 return FALSE;
1211
910600e9
RS		 1212 if (htab->is_vxworks)
1213 {
1214 if (!elf_vxworks_create_dynamic_sections (dynobj, info, &htab->srelplt2))
1215 return FALSE;
0e1862bb 1216 if (bfd_link_pic (info))
910600e9
RS		 1217 {
1218 htab->plt_header_size
1219 = 4 * ARRAY_SIZE (sparc_vxworks_shared_plt0_entry);
1220 htab->plt_entry_size
1221 = 4 * ARRAY_SIZE (sparc_vxworks_shared_plt_entry);
1222 }
1223 else
1224 {
1225 htab->plt_header_size
1226 = 4 * ARRAY_SIZE (sparc_vxworks_exec_plt0_entry);
1227 htab->plt_entry_size
1228 = 4 * ARRAY_SIZE (sparc_vxworks_exec_plt_entry);
1229 }
1230 }
910600e9 1231
9d19e4fd
AM		 1232 if (!htab->elf.splt || !htab->elf.srelplt || !htab->elf.sdynbss
1233 || (!bfd_link_pic (info) && !htab->elf.srelbss))
22b75d0a
DM		 1234 abort ();
1235
1236 return TRUE;
1237}
1238
d0c9aeb3
DM		 1239static bfd_boolean
1240create_ifunc_sections (bfd *abfd, struct bfd_link_info *info)
1241{
1242 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
1243 struct elf_link_hash_table *htab = elf_hash_table (info);
1244 flagword flags, pltflags;
1245 asection *s;
1246
1247 if (htab->irelifunc != NULL || htab->iplt != NULL)
1248 return TRUE;
1249
1250 flags = bed->dynamic_sec_flags;
1251 pltflags = flags | SEC_ALLOC | SEC_CODE | SEC_LOAD;
1252
1253 s = bfd_make_section_with_flags (abfd, ".iplt", pltflags);
1254 if (s == NULL
1255 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
1256 return FALSE;
1257 htab->iplt = s;
1258
1259 s = bfd_make_section_with_flags (abfd, ".rela.iplt",
1260 flags | SEC_READONLY);
1261 if (s == NULL
1262 || ! bfd_set_section_alignment (abfd, s,
1263 bed->s->log_file_align))
1264 return FALSE;
1265 htab->irelplt = s;
1266
1267 return TRUE;
1268}
1269
22b75d0a
DM		 1270/* Copy the extra info we tack onto an elf_link_hash_entry. */
1271
1272void
fcfa13d2 1273_bfd_sparc_elf_copy_indirect_symbol (struct bfd_link_info *info,
22b75d0a
DM		 1274 struct elf_link_hash_entry *dir,
1275 struct elf_link_hash_entry *ind)
1276{
1277 struct _bfd_sparc_elf_link_hash_entry *edir, *eind;
1278
1279 edir = (struct _bfd_sparc_elf_link_hash_entry *) dir;
1280 eind = (struct _bfd_sparc_elf_link_hash_entry *) ind;
1281
1282 if (eind->dyn_relocs != NULL)
1283 {
1284 if (edir->dyn_relocs != NULL)
1285 {
3bf083ed
AM		 1286 struct elf_dyn_relocs **pp;
1287 struct elf_dyn_relocs *p;
22b75d0a 1288
fcfa13d2 1289 /* Add reloc counts against the indirect sym to the direct sym
22b75d0a
DM		 1290 list. Merge any entries against the same section. */
1291 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
1292 {
3bf083ed 1293 struct elf_dyn_relocs *q;
22b75d0a
DM		 1294
1295 for (q = edir->dyn_relocs; q != NULL; q = q->next)
1296 if (q->sec == p->sec)
1297 {
1298 q->pc_count += p->pc_count;
1299 q->count += p->count;
1300 *pp = p->next;
1301 break;
1302 }
1303 if (q == NULL)
1304 pp = &p->next;
1305 }
1306 *pp = edir->dyn_relocs;
1307 }
1308
1309 edir->dyn_relocs = eind->dyn_relocs;
1310 eind->dyn_relocs = NULL;
1311 }
1312
1313 if (ind->root.type == bfd_link_hash_indirect
1314 && dir->got.refcount <= 0)
1315 {
1316 edir->tls_type = eind->tls_type;
1317 eind->tls_type = GOT_UNKNOWN;
1318 }
bb1dd176
QZ		 1319
1320 /* Copy has_got_reloc and has_non_got_reloc. */
1321 edir->has_got_reloc |= eind->has_got_reloc;
1322 edir->has_non_got_reloc |= eind->has_non_got_reloc;
1323
fcfa13d2 1324 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
22b75d0a
DM		 1325}
1326
1327static int
1328sparc_elf_tls_transition (struct bfd_link_info *info, bfd *abfd,
1329 int r_type, int is_local)
1330{
1331 if (! ABI_64_P (abfd)
1332 && r_type == R_SPARC_TLS_GD_HI22
1333 && ! _bfd_sparc_elf_tdata (abfd)->has_tlsgd)
1334 r_type = R_SPARC_REV32;
1335
0fb7012e 1336 if (!bfd_link_executable (info))
22b75d0a
DM		 1337 return r_type;
1338
1339 switch (r_type)
1340 {
1341 case R_SPARC_TLS_GD_HI22:
1342 if (is_local)
1343 return R_SPARC_TLS_LE_HIX22;
1344 return R_SPARC_TLS_IE_HI22;
1345 case R_SPARC_TLS_GD_LO10:
1346 if (is_local)
1347 return R_SPARC_TLS_LE_LOX10;
1348 return R_SPARC_TLS_IE_LO10;
1349 case R_SPARC_TLS_IE_HI22:
1350 if (is_local)
1351 return R_SPARC_TLS_LE_HIX22;
1352 return r_type;
1353 case R_SPARC_TLS_IE_LO10:
1354 if (is_local)
1355 return R_SPARC_TLS_LE_LOX10;
1356 return r_type;
1357 case R_SPARC_TLS_LDM_HI22:
1358 return R_SPARC_TLS_LE_HIX22;
1359 case R_SPARC_TLS_LDM_LO10:
1360 return R_SPARC_TLS_LE_LOX10;
1361 }
1362
1363 return r_type;
1364}
1365\f
1366/* Look through the relocs for a section during the first phase, and
1367 allocate space in the global offset table or procedure linkage
1368 table. */
1369
1370bfd_boolean
1371_bfd_sparc_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
1372 asection *sec, const Elf_Internal_Rela *relocs)
1373{
1374 struct _bfd_sparc_elf_link_hash_table *htab;
1375 Elf_Internal_Shdr *symtab_hdr;
1376 struct elf_link_hash_entry **sym_hashes;
22b75d0a
DM		 1377 const Elf_Internal_Rela *rel;
1378 const Elf_Internal_Rela *rel_end;
1379 asection *sreloc;
1380 int num_relocs;
1381 bfd_boolean checked_tlsgd = FALSE;
1382
0e1862bb 1383 if (bfd_link_relocatable (info))
22b75d0a
DM		 1384 return TRUE;
1385
1386 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 1387 BFD_ASSERT (htab != NULL);
0ffa91dd 1388 symtab_hdr = &elf_symtab_hdr (abfd);
22b75d0a 1389 sym_hashes = elf_sym_hashes (abfd);
22b75d0a
DM		 1390
1391 sreloc = NULL;
1392
1393 if (ABI_64_P (abfd))
d4730f92 1394 num_relocs = NUM_SHDR_ENTRIES (_bfd_elf_single_rel_hdr (sec));
22b75d0a
DM		 1395 else
1396 num_relocs = sec->reloc_count;
0ffa91dd
NC		 1397
1398 BFD_ASSERT (is_sparc_elf (abfd) || num_relocs == 0);
1399
d0c9aeb3
DM		 1400 if (htab->elf.dynobj == NULL)
1401 htab->elf.dynobj = abfd;
1402 if (!create_ifunc_sections (htab->elf.dynobj, info))
1403 return FALSE;
1404
22b75d0a
DM		 1405 rel_end = relocs + num_relocs;
1406 for (rel = relocs; rel < rel_end; rel++)
1407 {
1408 unsigned int r_type;
d42c267e 1409 unsigned int r_symndx;
22b75d0a 1410 struct elf_link_hash_entry *h;
bb1dd176 1411 struct _bfd_sparc_elf_link_hash_entry *eh;
d0c9aeb3 1412 Elf_Internal_Sym *isym;
22b75d0a
DM		 1413
1414 r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
1415 r_type = SPARC_ELF_R_TYPE (rel->r_info);
1416
1417 if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
1418 {
695344c0 1419 /* xgettext:c-format */
4eca0228 1420 _bfd_error_handler (_("%B: bad symbol index: %d"), abfd, r_symndx);
22b75d0a
DM		 1421 return FALSE;
1422 }
1423
d0c9aeb3 1424 isym = NULL;
22b75d0a 1425 if (r_symndx < symtab_hdr->sh_info)
d0c9aeb3
DM		 1426 {
1427 /* A local symbol. */
1428 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
1429 abfd, r_symndx);
1430 if (isym == NULL)
1431 return FALSE;
1432
1433 /* Check relocation against local STT_GNU_IFUNC symbol. */
1434 if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
1435 {
1436 h = elf_sparc_get_local_sym_hash (htab, abfd, rel,
1437 TRUE);
1438 if (h == NULL)
1439 return FALSE;
68ffbac6 1440
d0c9aeb3
DM		 1441 /* Fake a STT_GNU_IFUNC symbol. */
1442 h->type = STT_GNU_IFUNC;
1443 h->def_regular = 1;
1444 h->ref_regular = 1;
1445 h->forced_local = 1;
1446 h->root.type = bfd_link_hash_defined;
1447 }
1448 else
1449 h = NULL;
1450 }
22b75d0a 1451 else
973a3492
L		 1452 {
1453 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1454 while (h->root.type == bfd_link_hash_indirect
1455 || h->root.type == bfd_link_hash_warning)
1456 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1457 }
22b75d0a 1458
d0c9aeb3
DM		 1459 if (h && h->type == STT_GNU_IFUNC)
1460 {
1461 if (h->def_regular)
b48ca1d4
DM		 1462 {
1463 h->ref_regular = 1;
1464 h->plt.refcount += 1;
1465 }
d0c9aeb3
DM		 1466 }
1467
22b75d0a
DM		 1468 /* Compatibility with old R_SPARC_REV32 reloc conflicting
1469 with R_SPARC_TLS_GD_HI22. */
1470 if (! ABI_64_P (abfd) && ! checked_tlsgd)
1471 switch (r_type)
1472 {
1473 case R_SPARC_TLS_GD_HI22:
1474 {
1475 const Elf_Internal_Rela *relt;
1476
1477 for (relt = rel + 1; relt < rel_end; relt++)
1478 if (ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_LO10
1479 || ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_ADD
1480 || ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_CALL)
1481 break;
1482 checked_tlsgd = TRUE;
1483 _bfd_sparc_elf_tdata (abfd)->has_tlsgd = relt < rel_end;
1484 }
1485 break;
1486 case R_SPARC_TLS_GD_LO10:
1487 case R_SPARC_TLS_GD_ADD:
1488 case R_SPARC_TLS_GD_CALL:
1489 checked_tlsgd = TRUE;
1490 _bfd_sparc_elf_tdata (abfd)->has_tlsgd = TRUE;
1491 break;
1492 }
1493
1494 r_type = sparc_elf_tls_transition (info, abfd, r_type, h == NULL);
bb1dd176
QZ		 1495 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
1496
22b75d0a
DM		 1497 switch (r_type)
1498 {
1499 case R_SPARC_TLS_LDM_HI22:
1500 case R_SPARC_TLS_LDM_LO10:
1501 htab->tls_ldm_got.refcount += 1;
07d6d2b8
AM		 1502 if (eh != NULL)
1503 eh->has_got_reloc = 1;
22b75d0a
DM		 1504 break;
1505
1506 case R_SPARC_TLS_LE_HIX22:
1507 case R_SPARC_TLS_LE_LOX10:
0fb7012e 1508 if (!bfd_link_executable (info))
22b75d0a
DM		 1509 goto r_sparc_plt32;
1510 break;
1511
1512 case R_SPARC_TLS_IE_HI22:
1513 case R_SPARC_TLS_IE_LO10:
0fb7012e 1514 if (!bfd_link_executable (info))
22b75d0a
DM		 1515 info->flags |= DF_STATIC_TLS;
1516 /* Fall through */
1517
1518 case R_SPARC_GOT10:
1519 case R_SPARC_GOT13:
1520 case R_SPARC_GOT22:
739f7f82
DM		 1521 case R_SPARC_GOTDATA_HIX22:
1522 case R_SPARC_GOTDATA_LOX10:
1523 case R_SPARC_GOTDATA_OP_HIX22:
1524 case R_SPARC_GOTDATA_OP_LOX10:
22b75d0a
DM		 1525 case R_SPARC_TLS_GD_HI22:
1526 case R_SPARC_TLS_GD_LO10:
1527 /* This symbol requires a global offset table entry. */
1528 {
1529 int tls_type, old_tls_type;
1530
1531 switch (r_type)
1532 {
1533 default:
1534 case R_SPARC_GOT10:
1535 case R_SPARC_GOT13:
1536 case R_SPARC_GOT22:
739f7f82
DM		 1537 case R_SPARC_GOTDATA_OP_HIX22:
1538 case R_SPARC_GOTDATA_OP_LOX10:
22b75d0a
DM		 1539 tls_type = GOT_NORMAL;
1540 break;
1541 case R_SPARC_TLS_GD_HI22:
1542 case R_SPARC_TLS_GD_LO10:
1543 tls_type = GOT_TLS_GD;
1544 break;
1545 case R_SPARC_TLS_IE_HI22:
1546 case R_SPARC_TLS_IE_LO10:
1547 tls_type = GOT_TLS_IE;
1548 break;
1549 }
1550
1551 if (h != NULL)
1552 {
1553 h->got.refcount += 1;
1554 old_tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
1555 }
1556 else
1557 {
1558 bfd_signed_vma *local_got_refcounts;
1559
1560 /* This is a global offset table entry for a local symbol. */
1561 local_got_refcounts = elf_local_got_refcounts (abfd);
1562 if (local_got_refcounts == NULL)
1563 {
1564 bfd_size_type size;
1565
1566 size = symtab_hdr->sh_info;
1567 size *= (sizeof (bfd_signed_vma) + sizeof(char));
1568 local_got_refcounts = ((bfd_signed_vma *)
1569 bfd_zalloc (abfd, size));
1570 if (local_got_refcounts == NULL)
1571 return FALSE;
1572 elf_local_got_refcounts (abfd) = local_got_refcounts;
1573 _bfd_sparc_elf_local_got_tls_type (abfd)
1574 = (char *) (local_got_refcounts + symtab_hdr->sh_info);
1575 }
00c50991
DM		 1576 switch (r_type)
1577 {
1578 case R_SPARC_GOTDATA_OP_HIX22:
1579 case R_SPARC_GOTDATA_OP_LOX10:
1580 break;
1581
1582 default:
1583 local_got_refcounts[r_symndx] += 1;
1584 break;
1585 }
22b75d0a
DM		 1586 old_tls_type = _bfd_sparc_elf_local_got_tls_type (abfd) [r_symndx];
1587 }
1588
1589 /* If a TLS symbol is accessed using IE at least once,
1590 there is no point to use dynamic model for it. */
1591 if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN
1592 && (old_tls_type != GOT_TLS_GD
1593 || tls_type != GOT_TLS_IE))
1594 {
1595 if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD)
1596 tls_type = old_tls_type;
1597 else
1598 {
4eca0228 1599 _bfd_error_handler
695344c0 1600 /* xgettext:c-format */
22b75d0a
DM		 1601 (_("%B: `%s' accessed both as normal and thread local symbol"),
1602 abfd, h ? h->root.root.string : "<local>");
1603 return FALSE;
1604 }
1605 }
1606
1607 if (old_tls_type != tls_type)
1608 {
1609 if (h != NULL)
1610 _bfd_sparc_elf_hash_entry (h)->tls_type = tls_type;
1611 else
1612 _bfd_sparc_elf_local_got_tls_type (abfd) [r_symndx] = tls_type;
1613 }
1614 }
1615
72fbc6e5 1616 if (htab->elf.sgot == NULL)
22b75d0a 1617 {
72fbc6e5 1618 if (!_bfd_elf_create_got_section (htab->elf.dynobj, info))
22b75d0a
DM		 1619 return FALSE;
1620 }
bb1dd176 1621
07d6d2b8
AM		 1622 if (eh != NULL)
1623 eh->has_got_reloc = 1;
22b75d0a
DM		 1624 break;
1625
1626 case R_SPARC_TLS_GD_CALL:
1627 case R_SPARC_TLS_LDM_CALL:
0fb7012e 1628 if (!bfd_link_executable (info))
22b75d0a
DM		 1629 {
1630 /* These are basically R_SPARC_TLS_WPLT30 relocs against
1631 __tls_get_addr. */
1632 struct bfd_link_hash_entry *bh = NULL;
1633 if (! _bfd_generic_link_add_one_symbol (info, abfd,
1634 "__tls_get_addr", 0,
1635 bfd_und_section_ptr, 0,
1636 NULL, FALSE, FALSE,
1637 &bh))
1638 return FALSE;
1639 h = (struct elf_link_hash_entry *) bh;
1640 }
1641 else
1642 break;
1643 /* Fall through */
1644
1645 case R_SPARC_PLT32:
1646 case R_SPARC_WPLT30:
1647 case R_SPARC_HIPLT22:
1648 case R_SPARC_LOPLT10:
1649 case R_SPARC_PCPLT32:
1650 case R_SPARC_PCPLT22:
1651 case R_SPARC_PCPLT10:
1652 case R_SPARC_PLT64:
1653 /* This symbol requires a procedure linkage table entry. We
1654 actually build the entry in adjust_dynamic_symbol,
1655 because this might be a case of linking PIC code without
1656 linking in any dynamic objects, in which case we don't
1657 need to generate a procedure linkage table after all. */
1658
1659 if (h == NULL)
1660 {
1661 if (! ABI_64_P (abfd))
1662 {
1663 /* The Solaris native assembler will generate a WPLT30
1664 reloc for a local symbol if you assemble a call from
1665 one section to another when using -K pic. We treat
1666 it as WDISP30. */
1667 if (ELF32_R_TYPE (rel->r_info) == R_SPARC_PLT32)
1668 goto r_sparc_plt32;
1669 break;
1670 }
af1fb11f
NC		 1671 /* PR 7027: We need similar behaviour for 64-bit binaries. */
1672 else if (r_type == R_SPARC_WPLT30)
1673 break;
22b75d0a
DM		 1674
1675 /* It does not make sense to have a procedure linkage
07d6d2b8 1676 table entry for a local symbol. */
22b75d0a
DM		 1677 bfd_set_error (bfd_error_bad_value);
1678 return FALSE;
1679 }
1680
1681 h->needs_plt = 1;
1682
1683 {
1684 int this_r_type;
1685
1686 this_r_type = SPARC_ELF_R_TYPE (rel->r_info);
1687 if (this_r_type == R_SPARC_PLT32
1688 || this_r_type == R_SPARC_PLT64)
1689 goto r_sparc_plt32;
1690 }
1691 h->plt.refcount += 1;
bb1dd176 1692
07d6d2b8
AM		 1693 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
1694 eh->has_got_reloc = 1;
22b75d0a
DM		 1695 break;
1696
1697 case R_SPARC_PC10:
1698 case R_SPARC_PC22:
1699 case R_SPARC_PC_HH22:
1700 case R_SPARC_PC_HM10:
1701 case R_SPARC_PC_LM22:
1702 if (h != NULL)
1703 h->non_got_ref = 1;
1704
1705 if (h != NULL
1706 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
1707 break;
1708 /* Fall through. */
1709
1710 case R_SPARC_DISP8:
1711 case R_SPARC_DISP16:
1712 case R_SPARC_DISP32:
1713 case R_SPARC_DISP64:
1714 case R_SPARC_WDISP30:
1715 case R_SPARC_WDISP22:
1716 case R_SPARC_WDISP19:
1717 case R_SPARC_WDISP16:
2615994e 1718 case R_SPARC_WDISP10:
22b75d0a
DM		 1719 case R_SPARC_8:
1720 case R_SPARC_16:
1721 case R_SPARC_32:
1722 case R_SPARC_HI22:
1723 case R_SPARC_22:
1724 case R_SPARC_13:
1725 case R_SPARC_LO10:
1726 case R_SPARC_UA16:
1727 case R_SPARC_UA32:
1728 case R_SPARC_10:
1729 case R_SPARC_11:
1730 case R_SPARC_64:
1731 case R_SPARC_OLO10:
1732 case R_SPARC_HH22:
1733 case R_SPARC_HM10:
1734 case R_SPARC_LM22:
1735 case R_SPARC_7:
1736 case R_SPARC_5:
1737 case R_SPARC_6:
1738 case R_SPARC_HIX22:
1739 case R_SPARC_LOX10:
1740 case R_SPARC_H44:
1741 case R_SPARC_M44:
1742 case R_SPARC_L44:
2615994e 1743 case R_SPARC_H34:
22b75d0a
DM		 1744 case R_SPARC_UA64:
1745 if (h != NULL)
1746 h->non_got_ref = 1;
1747
07d6d2b8
AM		 1748 if (eh != NULL && (sec->flags & SEC_CODE) != 0)
1749 eh->has_non_got_reloc = 1;
bb1dd176 1750
22b75d0a 1751 r_sparc_plt32:
0e1862bb 1752 if (h != NULL && !bfd_link_pic (info))
22b75d0a
DM		 1753 {
1754 /* We may need a .plt entry if the function this reloc
1755 refers to is in a shared lib. */
1756 h->plt.refcount += 1;
1757 }
1758
1759 /* If we are creating a shared library, and this is a reloc
1760 against a global symbol, or a non PC relative reloc
1761 against a local symbol, then we need to copy the reloc
1762 into the shared library. However, if we are linking with
1763 -Bsymbolic, we do not need to copy a reloc against a
1764 global symbol which is defined in an object we are
1765 including in the link (i.e., DEF_REGULAR is set). At
1766 this point we have not seen all the input files, so it is
1767 possible that DEF_REGULAR is not set now but will be set
1768 later (it is never cleared). In case of a weak definition,
1769 DEF_REGULAR may be cleared later by a strong definition in
1770 a shared library. We account for that possibility below by
1771 storing information in the relocs_copied field of the hash
1772 table entry. A similar situation occurs when creating
1773 shared libraries and symbol visibility changes render the
1774 symbol local.
1775
1776 If on the other hand, we are creating an executable, we
1777 may need to keep relocations for symbols satisfied by a
1778 dynamic library if we manage to avoid copy relocs for the
1779 symbol. */
0e1862bb 1780 if ((bfd_link_pic (info)
22b75d0a
DM		 1781 && (sec->flags & SEC_ALLOC) != 0
1782 && (! _bfd_sparc_elf_howto_table[r_type].pc_relative
1783 || (h != NULL
72fbc6e5 1784 && (! SYMBOLIC_BIND (info, h)
22b75d0a
DM		 1785 || h->root.type == bfd_link_hash_defweak
1786 || !h->def_regular))))
0e1862bb 1787 || (!bfd_link_pic (info)
22b75d0a
DM		 1788 && (sec->flags & SEC_ALLOC) != 0
1789 && h != NULL
1790 && (h->root.type == bfd_link_hash_defweak
d0c9aeb3 1791 || !h->def_regular))
0e1862bb 1792 || (!bfd_link_pic (info)
d0c9aeb3
DM		 1793 && h != NULL
1794 && h->type == STT_GNU_IFUNC))
22b75d0a 1795 {
3bf083ed
AM		 1796 struct elf_dyn_relocs *p;
1797 struct elf_dyn_relocs **head;
22b75d0a
DM		 1798
1799 /* When creating a shared object, we must copy these
1800 relocs into the output file. We create a reloc
1801 section in dynobj and make room for the reloc. */
1802 if (sreloc == NULL)
1803 {
83bac4b0
NC		 1804 sreloc = _bfd_elf_make_dynamic_reloc_section
1805 (sec, htab->elf.dynobj, htab->word_align_power,
1806 abfd, /*rela?*/ TRUE);
1807
22b75d0a 1808 if (sreloc == NULL)
83bac4b0 1809 return FALSE;
22b75d0a
DM		 1810 }
1811
1812 /* If this is a global symbol, we count the number of
1813 relocations we need for this symbol. */
1814 if (h != NULL)
1815 head = &((struct _bfd_sparc_elf_link_hash_entry *) h)->dyn_relocs;
1816 else
1817 {
1818 /* Track dynamic relocs needed for local syms too.
1819 We really need local syms available to do this
1820 easily. Oh well. */
22b75d0a 1821 asection *s;
6edfbbad 1822 void *vpp;
22b75d0a 1823
d0c9aeb3 1824 BFD_ASSERT (isym != NULL);
87d72d41
AM		 1825 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
1826 if (s == NULL)
1827 s = sec;
1828
6edfbbad 1829 vpp = &elf_section_data (s)->local_dynrel;
3bf083ed 1830 head = (struct elf_dyn_relocs **) vpp;
22b75d0a
DM		 1831 }
1832
1833 p = *head;
1834 if (p == NULL || p->sec != sec)
1835 {
1836 bfd_size_type amt = sizeof *p;
3bf083ed 1837 p = ((struct elf_dyn_relocs *)
22b75d0a
DM		 1838 bfd_alloc (htab->elf.dynobj, amt));
1839 if (p == NULL)
1840 return FALSE;
1841 p->next = *head;
1842 *head = p;
1843 p->sec = sec;
1844 p->count = 0;
1845 p->pc_count = 0;
1846 }
1847
1848 p->count += 1;
1849 if (_bfd_sparc_elf_howto_table[r_type].pc_relative)
1850 p->pc_count += 1;
1851 }
1852
1853 break;
1854
1855 case R_SPARC_GNU_VTINHERIT:
1856 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
1857 return FALSE;
1858 break;
1859
1860 case R_SPARC_GNU_VTENTRY:
d17e0c6e
JB		 1861 BFD_ASSERT (h != NULL);
1862 if (h != NULL
1863 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
22b75d0a
DM		 1864 return FALSE;
1865 break;
1866
1867 case R_SPARC_REGISTER:
1868 /* Nothing to do. */
1869 break;
1870
1871 default:
1872 break;
1873 }
1874 }
1875
1876 return TRUE;
1877}
1878\f
1879asection *
1880_bfd_sparc_elf_gc_mark_hook (asection *sec,
1881 struct bfd_link_info *info,
1882 Elf_Internal_Rela *rel,
1883 struct elf_link_hash_entry *h,
1884 Elf_Internal_Sym *sym)
1885{
1886 if (h != NULL)
07adf181 1887 switch (SPARC_ELF_R_TYPE (rel->r_info))
22b75d0a
DM		 1888 {
1889 case R_SPARC_GNU_VTINHERIT:
1890 case R_SPARC_GNU_VTENTRY:
07adf181 1891 return NULL;
22b75d0a 1892 }
22b75d0a 1893
b45b6908 1894 /* FIXME: The test here, in check_relocs and in relocate_section
0e1862bb
L		 1895 dealing with TLS optimization, ought to be !bfd_link_executable (info). */
1896 if (bfd_link_pic (info))
b45b6908
AM		 1897 {
1898 switch (SPARC_ELF_R_TYPE (rel->r_info))
1899 {
1900 case R_SPARC_TLS_GD_CALL:
1901 case R_SPARC_TLS_LDM_CALL:
1902 /* This reloc implicitly references __tls_get_addr. We know
1903 another reloc will reference the same symbol as the one
1904 on this reloc, so the real symbol and section will be
1905 gc marked when processing the other reloc. That lets
1906 us handle __tls_get_addr here. */
1907 h = elf_link_hash_lookup (elf_hash_table (info), "__tls_get_addr",
1908 FALSE, FALSE, TRUE);
1909 BFD_ASSERT (h != NULL);
1910 h->mark = 1;
60d67dc8
AM		 1911 if (h->is_weakalias)
1912 weakdef (h)->mark = 1;
b45b6908
AM		 1913 sym = NULL;
1914 }
1915 }
1916
07adf181 1917 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
22b75d0a
DM		 1918}
1919
abd242a9
DM		 1920static Elf_Internal_Rela *
1921sparc_elf_find_reloc_at_ofs (Elf_Internal_Rela *rel,
1922 Elf_Internal_Rela *relend,
1923 bfd_vma offset)
1924{
1925 while (rel < relend)
1926 {
1927 if (rel->r_offset == offset)
1928 return rel;
1929 rel++;
1930 }
1931 return NULL;
1932}
1933
bb1dd176
QZ		 1934/* Remove undefined weak symbol from the dynamic symbol table if it
1935 is resolved to 0. */
1936
1937bfd_boolean
1938_bfd_sparc_elf_fixup_symbol (struct bfd_link_info *info,
07d6d2b8 1939 struct elf_link_hash_entry *h)
bb1dd176
QZ		 1940{
1941 if (h->dynindx != -1
1942 && UNDEFINED_WEAK_RESOLVED_TO_ZERO (info,
07d6d2b8 1943 _bfd_sparc_elf_hash_entry (h)))
bb1dd176
QZ		 1944 {
1945 h->dynindx = -1;
1946 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
07d6d2b8 1947 h->dynstr_index);
bb1dd176
QZ		 1948 }
1949 return TRUE;
1950}
1951
63c1f59d
AM		 1952/* Find dynamic relocs for H that apply to read-only sections. */
1953
1954static asection *
1955readonly_dynrelocs (struct elf_link_hash_entry *h)
1956{
3bf083ed 1957 struct elf_dyn_relocs *p;
63c1f59d
AM		 1958
1959 for (p = _bfd_sparc_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next)
1960 {
1961 asection *s = p->sec->output_section;
1962
1963 if (s != NULL && (s->flags & SEC_READONLY) != 0)
1964 return p->sec;
1965 }
1966 return NULL;
1967}
1968
22b75d0a
DM		 1969/* Adjust a symbol defined by a dynamic object and referenced by a
1970 regular object. The current definition is in some section of the
1971 dynamic object, but we're not including those sections. We have to
1972 change the definition to something the rest of the link can
1973 understand. */
1974
1975bfd_boolean
1976_bfd_sparc_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
1977 struct elf_link_hash_entry *h)
1978{
1979 struct _bfd_sparc_elf_link_hash_table *htab;
5474d94f 1980 asection *s, *srel;
22b75d0a
DM		 1981
1982 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 1983 BFD_ASSERT (htab != NULL);
22b75d0a
DM		 1984
1985 /* Make sure we know what is going on here. */
1986 BFD_ASSERT (htab->elf.dynobj != NULL
1987 && (h->needs_plt
d0c9aeb3 1988 || h->type == STT_GNU_IFUNC
60d67dc8 1989 || h->is_weakalias
22b75d0a
DM		 1990 || (h->def_dynamic
1991 && h->ref_regular
1992 && !h->def_regular)));
1993
1994 /* If this is a function, put it in the procedure linkage table. We
1995 will fill in the contents of the procedure linkage table later
1996 (although we could actually do it here). The STT_NOTYPE
1997 condition is a hack specifically for the Oracle libraries
1998 delivered for Solaris; for some inexplicable reason, they define
1999 some of their functions as STT_NOTYPE when they really should be
2000 STT_FUNC. */
2001 if (h->type == STT_FUNC
d0c9aeb3 2002 || h->type == STT_GNU_IFUNC
22b75d0a
DM		 2003 || h->needs_plt
2004 || (h->type == STT_NOTYPE
2005 && (h->root.type == bfd_link_hash_defined
2006 || h->root.type == bfd_link_hash_defweak)
2007 && (h->root.u.def.section->flags & SEC_CODE) != 0))
2008 {
2009 if (h->plt.refcount <= 0
d0c9aeb3
DM		 2010 || (h->type != STT_GNU_IFUNC
2011 && (SYMBOL_CALLS_LOCAL (info, h)
2012 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2013 && h->root.type == bfd_link_hash_undefweak))))
22b75d0a
DM		 2014 {
2015 /* This case can occur if we saw a WPLT30 reloc in an input
2016 file, but the symbol was never referred to by a dynamic
2017 object, or if all references were garbage collected. In
2018 such a case, we don't actually need to build a procedure
2019 linkage table, and we can just do a WDISP30 reloc instead. */
2020 h->plt.offset = (bfd_vma) -1;
2021 h->needs_plt = 0;
2022 }
2023
2024 return TRUE;
2025 }
2026 else
2027 h->plt.offset = (bfd_vma) -1;
2028
2029 /* If this is a weak symbol, and there is a real definition, the
2030 processor independent code will have arranged for us to see the
2031 real definition first, and we can just use the same value. */
60d67dc8 2032 if (h->is_weakalias)
22b75d0a 2033 {
60d67dc8
AM		 2034 struct elf_link_hash_entry *def = weakdef (h);
2035 BFD_ASSERT (def->root.type == bfd_link_hash_defined);
2036 h->root.u.def.section = def->root.u.def.section;
2037 h->root.u.def.value = def->root.u.def.value;
22b75d0a
DM		 2038 return TRUE;
2039 }
2040
2041 /* This is a reference to a symbol defined by a dynamic object which
2042 is not a function. */
2043
2044 /* If we are creating a shared library, we must presume that the
2045 only references to the symbol are via the global offset table.
2046 For such cases we need not do anything here; the relocations will
2047 be handled correctly by relocate_section. */
0e1862bb 2048 if (bfd_link_pic (info))
22b75d0a
DM		 2049 return TRUE;
2050
2051 /* If there are no references to this symbol that do not use the
2052 GOT, we don't need to generate a copy reloc. */
2053 if (!h->non_got_ref)
2054 return TRUE;
2055
72fbc6e5
DM		 2056 /* If -z nocopyreloc was given, we won't generate them either. */
2057 if (info->nocopyreloc)
2058 {
2059 h->non_got_ref = 0;
2060 return TRUE;
2061 }
2062
3bf083ed 2063 /* If we don't find any dynamic relocs in read-only sections, then
22b75d0a 2064 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
3bf083ed 2065 if (!readonly_dynrelocs (h))
22b75d0a
DM		 2066 {
2067 h->non_got_ref = 0;
2068 return TRUE;
2069 }
2070
2071 /* We must allocate the symbol in our .dynbss section, which will
2072 become part of the .bss section of the executable. There will be
2073 an entry for this symbol in the .dynsym section. The dynamic
2074 object will contain position independent code, so all references
2075 from the dynamic object to this symbol will go through the global
2076 offset table. The dynamic linker will use the .dynsym entry to
2077 determine the address it must put in the global offset table, so
2078 both the dynamic object and the regular object will refer to the
2079 same memory location for the variable. */
2080
2081 /* We must generate a R_SPARC_COPY reloc to tell the dynamic linker
2082 to copy the initial value out of the dynamic object and into the
2083 runtime process image. We need to remember the offset into the
2084 .rel.bss section we are going to use. */
5474d94f
AM		 2085 if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
2086 {
2087 s = htab->elf.sdynrelro;
2088 srel = htab->elf.sreldynrelro;
2089 }
2090 else
2091 {
2092 s = htab->elf.sdynbss;
2093 srel = htab->elf.srelbss;
2094 }
1d7e9d18 2095 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
22b75d0a 2096 {
5474d94f 2097 srel->size += SPARC_ELF_RELA_BYTES (htab);
22b75d0a
DM		 2098 h->needs_copy = 1;
2099 }
2100
6cabe1ea 2101 return _bfd_elf_adjust_dynamic_copy (info, h, s);
22b75d0a
DM		 2102}
2103
2104/* Allocate space in .plt, .got and associated reloc sections for
2105 dynamic relocs. */
2106
2107static bfd_boolean
2c3fc389 2108allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
22b75d0a
DM		 2109{
2110 struct bfd_link_info *info;
2111 struct _bfd_sparc_elf_link_hash_table *htab;
2112 struct _bfd_sparc_elf_link_hash_entry *eh;
3bf083ed 2113 struct elf_dyn_relocs *p;
bb1dd176 2114 bfd_boolean resolved_to_zero;
22b75d0a
DM		 2115
2116 if (h->root.type == bfd_link_hash_indirect)
2117 return TRUE;
2118
22b75d0a
DM		 2119 info = (struct bfd_link_info *) inf;
2120 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 2121 BFD_ASSERT (htab != NULL);
22b75d0a 2122
bb1dd176
QZ		 2123 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
2124 resolved_to_zero = UNDEFINED_WEAK_RESOLVED_TO_ZERO (info, eh);
2125
d0c9aeb3
DM		 2126 if ((htab->elf.dynamic_sections_created
2127 && h->plt.refcount > 0)
2128 || (h->type == STT_GNU_IFUNC
b48ca1d4
DM		 2129 && h->def_regular
2130 && h->ref_regular))
22b75d0a
DM		 2131 {
2132 /* Make sure this symbol is output as a dynamic symbol.
2133 Undefined weak syms won't yet be marked as dynamic. */
2134 if (h->dynindx == -1
bb1dd176 2135 && !h->forced_local
07d6d2b8
AM		 2136 && !resolved_to_zero
2137 && h->root.type == bfd_link_hash_undefweak)
22b75d0a
DM		 2138 {
2139 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2140 return FALSE;
2141 }
2142
0e1862bb 2143 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h)
b48ca1d4
DM		 2144 || (h->type == STT_GNU_IFUNC
2145 && h->def_regular))
22b75d0a 2146 {
72fbc6e5 2147 asection *s = htab->elf.splt;
22b75d0a 2148
d0c9aeb3
DM		 2149 if (s == NULL)
2150 s = htab->elf.iplt;
2151
910600e9 2152 /* Allocate room for the header. */
22b75d0a 2153 if (s->size == 0)
910600e9
RS		 2154 {
2155 s->size = htab->plt_header_size;
2156
2157 /* Allocate space for the .rela.plt.unloaded relocations. */
0e1862bb 2158 if (htab->is_vxworks && !bfd_link_pic (info))
910600e9
RS		 2159 htab->srelplt2->size = sizeof (Elf32_External_Rela) * 2;
2160 }
22b75d0a
DM		 2161
2162 /* The procedure linkage table size is bounded by the magnitude
2163 of the offset we can describe in the entry. */
2164 if (s->size >= (SPARC_ELF_WORD_BYTES(htab) == 8 ?
e8be8da4 2165 (((bfd_vma)1 << 31) << 1) : 0x400000))
22b75d0a
DM		 2166 {
2167 bfd_set_error (bfd_error_bad_value);
2168 return FALSE;
2169 }
2170
2171 if (SPARC_ELF_WORD_BYTES(htab) == 8
2172 && s->size >= PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE)
2173 {
2174 bfd_vma off = s->size - PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE;
2175
2176
2177 off = (off % (160 * PLT64_ENTRY_SIZE)) / PLT64_ENTRY_SIZE;
2178
2179 h->plt.offset = (s->size - (off * 8));
2180 }
2181 else
2182 h->plt.offset = s->size;
2183
2184 /* If this symbol is not defined in a regular file, and we are
2185 not generating a shared library, then set the symbol to this
2186 location in the .plt. This is required to make function
2187 pointers compare as equal between the normal executable and
2188 the shared library. */
0e1862bb 2189 if (! bfd_link_pic (info)
22b75d0a
DM		 2190 && !h->def_regular)
2191 {
2192 h->root.u.def.section = s;
2193 h->root.u.def.value = h->plt.offset;
2194 }
2195
2196 /* Make room for this entry. */
910600e9 2197 s->size += htab->plt_entry_size;
22b75d0a 2198
07d6d2b8
AM		 2199 /* There should be no PLT relocations against resolved undefined
2200 weak symbols in the executable. */
2201 if (!resolved_to_zero)
2202 {
bb1dd176
QZ		 2203 /* We also need to make an entry in the .rela.plt section. */
2204 if (s == htab->elf.splt)
07d6d2b8 2205 htab->elf.srelplt->size += SPARC_ELF_RELA_BYTES (htab);
bb1dd176 2206 else
07d6d2b8
AM		 2207 htab->elf.irelplt->size += SPARC_ELF_RELA_BYTES (htab);
2208 }
910600e9
RS		 2209
2210 if (htab->is_vxworks)
2211 {
2212 /* Allocate space for the .got.plt entry. */
72fbc6e5 2213 htab->elf.sgotplt->size += 4;
910600e9
RS		 2214
2215 /* ...and for the .rela.plt.unloaded relocations. */
0e1862bb 2216 if (!bfd_link_pic (info))
910600e9
RS		 2217 htab->srelplt2->size += sizeof (Elf32_External_Rela) * 3;
2218 }
22b75d0a
DM		 2219 }
2220 else
2221 {
2222 h->plt.offset = (bfd_vma) -1;
2223 h->needs_plt = 0;
2224 }
2225 }
2226 else
2227 {
2228 h->plt.offset = (bfd_vma) -1;
2229 h->needs_plt = 0;
2230 }
2231
2232 /* If R_SPARC_TLS_IE_{HI22,LO10} symbol is now local to the binary,
2233 make it a R_SPARC_TLS_LE_{HI22,LO10} requiring no TLS entry. */
2234 if (h->got.refcount > 0
0fb7012e 2235 && bfd_link_executable (info)
22b75d0a
DM		 2236 && h->dynindx == -1
2237 && _bfd_sparc_elf_hash_entry(h)->tls_type == GOT_TLS_IE)
2238 h->got.offset = (bfd_vma) -1;
2239 else if (h->got.refcount > 0)
2240 {
2241 asection *s;
2242 bfd_boolean dyn;
2243 int tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
2244
2245 /* Make sure this symbol is output as a dynamic symbol.
2246 Undefined weak syms won't yet be marked as dynamic. */
2247 if (h->dynindx == -1
bb1dd176 2248 && !h->forced_local
07d6d2b8
AM		 2249 && !resolved_to_zero
2250 && h->root.type == bfd_link_hash_undefweak)
22b75d0a
DM		 2251 {
2252 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2253 return FALSE;
2254 }
2255
72fbc6e5 2256 s = htab->elf.sgot;
22b75d0a
DM		 2257 h->got.offset = s->size;
2258 s->size += SPARC_ELF_WORD_BYTES (htab);
2259 /* R_SPARC_TLS_GD_HI{22,LO10} needs 2 consecutive GOT slots. */
2260 if (tls_type == GOT_TLS_GD)
2261 s->size += SPARC_ELF_WORD_BYTES (htab);
2262 dyn = htab->elf.dynamic_sections_created;
2263 /* R_SPARC_TLS_IE_{HI22,LO10} needs one dynamic relocation,
2264 R_SPARC_TLS_GD_{HI22,LO10} needs one if local symbol and two if
bb1dd176
QZ		 2265 global. No dynamic relocations are needed against resolved
2266 undefined weak symbols in an executable. */
22b75d0a 2267 if ((tls_type == GOT_TLS_GD && h->dynindx == -1)
d0c9aeb3
DM		 2268 || tls_type == GOT_TLS_IE
2269 || h->type == STT_GNU_IFUNC)
72fbc6e5 2270 htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
22b75d0a 2271 else if (tls_type == GOT_TLS_GD)
72fbc6e5 2272 htab->elf.srelgot->size += 2 * SPARC_ELF_RELA_BYTES (htab);
bb1dd176 2273 else if (((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
07d6d2b8
AM		 2274 && !resolved_to_zero)
2275 || h->root.type != bfd_link_hash_undefweak)
2276 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2277 bfd_link_pic (info),
bb1dd176 2278 h))
72fbc6e5 2279 htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
22b75d0a
DM		 2280 }
2281 else
2282 h->got.offset = (bfd_vma) -1;
2283
22b75d0a
DM		 2284 if (eh->dyn_relocs == NULL)
2285 return TRUE;
2286
2287 /* In the shared -Bsymbolic case, discard space allocated for
2288 dynamic pc-relative relocs against symbols which turn out to be
2289 defined in regular objects. For the normal shared case, discard
2290 space for pc-relative relocs that have become local due to symbol
2291 visibility changes. */
2292
0e1862bb 2293 if (bfd_link_pic (info))
22b75d0a 2294 {
72fbc6e5 2295 if (SYMBOL_CALLS_LOCAL (info, h))
22b75d0a 2296 {
3bf083ed 2297 struct elf_dyn_relocs **pp;
22b75d0a
DM		 2298
2299 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
2300 {
2301 p->count -= p->pc_count;
2302 p->pc_count = 0;
2303 if (p->count == 0)
2304 *pp = p->next;
2305 else
2306 pp = &p->next;
2307 }
2308 }
22d606e9 2309
3348747a
NS		 2310 if (htab->is_vxworks)
2311 {
3bf083ed 2312 struct elf_dyn_relocs **pp;
3348747a
NS		 2313
2314 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
2315 {
2316 if (strcmp (p->sec->output_section->name, ".tls_vars") == 0)
2317 *pp = p->next;
2318 else
2319 pp = &p->next;
2320 }
2321 }
2322
22d606e9 2323 /* Also discard relocs on undefined weak syms with non-default
bb1dd176 2324 visibility or in PIE. */
22d606e9
AM		 2325 if (eh->dyn_relocs != NULL
2326 && h->root.type == bfd_link_hash_undefweak)
2327 {
07d6d2b8 2328 /* An undefined weak symbol is never
bb1dd176
QZ		 2329 bound locally in a shared library. */
2330
2331 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
07d6d2b8
AM		 2332 || resolved_to_zero)
2333 {
2334 if (h->non_got_ref)
2335 {
2336 /* Keep dynamic non-GOT/non-PLT relocation so that we
2337 can branch to 0 without PLT. */
2338 struct elf_dyn_relocs **pp;
2339
2340 for (pp = &eh->dyn_relocs; (p = *pp) != NULL;)
2341 if (p->pc_count == 0)
2342 *pp = p->next;
2343 else
2344 {
2345 /* Remove other relocations. */
2346 p->count = p->pc_count;
2347 pp = &p->next;
2348 }
2349
2350 if (eh->dyn_relocs != NULL)
2351 {
2352 /* Make sure undefined weak symbols are output
2353 as dynamic symbols in PIEs for dynamic non-GOT
2354 non-PLT reloations. */
2355 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2356 return FALSE;
2357 }
2358 }
2359 else
2360 eh->dyn_relocs = NULL;
2361 }
22d606e9
AM		 2362
2363 /* Make sure undefined weak symbols are output as a dynamic
2364 symbol in PIEs. */
2365 else if (h->dynindx == -1
2366 && !h->forced_local)
2367 {
2368 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2369 return FALSE;
2370 }
2371 }
22b75d0a
DM		 2372 }
2373 else
2374 {
2375 /* For the non-shared case, discard space for relocs against
2376 symbols which turn out to need copy relocs or are not
2377 dynamic. */
2378
bb1dd176 2379 if ((!h->non_got_ref
07d6d2b8
AM		 2380 || (h->root.type == bfd_link_hash_undefweak
2381 && !resolved_to_zero))
22b75d0a
DM		 2382 && ((h->def_dynamic
2383 && !h->def_regular)
2384 || (htab->elf.dynamic_sections_created
2385 && (h->root.type == bfd_link_hash_undefweak
2386 || h->root.type == bfd_link_hash_undefined))))
2387 {
2388 /* Make sure this symbol is output as a dynamic symbol.
2389 Undefined weak syms won't yet be marked as dynamic. */
2390 if (h->dynindx == -1
bb1dd176 2391 && !h->forced_local
07d6d2b8
AM		 2392 && !resolved_to_zero
2393 && h->root.type == bfd_link_hash_undefweak)
22b75d0a
DM		 2394 {
2395 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2396 return FALSE;
2397 }
2398
2399 /* If that succeeded, we know we'll be keeping all the
2400 relocs. */
2401 if (h->dynindx != -1)
2402 goto keep;
2403 }
2404
2405 eh->dyn_relocs = NULL;
2406
2407 keep: ;
2408 }
2409
2410 /* Finally, allocate space. */
2411 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2412 {
2413 asection *sreloc = elf_section_data (p->sec)->sreloc;
2414 sreloc->size += p->count * SPARC_ELF_RELA_BYTES (htab);
2415 }
2416
2417 return TRUE;
2418}
2419
d0c9aeb3
DM		 2420/* Allocate space in .plt, .got and associated reloc sections for
2421 local dynamic relocs. */
2422
2423static bfd_boolean
2424allocate_local_dynrelocs (void **slot, void *inf)
2425{
2426 struct elf_link_hash_entry *h
2427 = (struct elf_link_hash_entry *) *slot;
2428
2429 if (h->type != STT_GNU_IFUNC
2430 || !h->def_regular
2431 || !h->ref_regular
2432 || !h->forced_local
2433 || h->root.type != bfd_link_hash_defined)
2434 abort ();
2435
2436 return allocate_dynrelocs (h, inf);
2437}
2438
63c1f59d
AM		 2439/* Set DF_TEXTREL if we find any dynamic relocs that apply to
2440 read-only sections. */
22b75d0a
DM		 2441
2442static bfd_boolean
63c1f59d 2443maybe_set_textrel (struct elf_link_hash_entry *h, void *info_p)
22b75d0a 2444{
63c1f59d 2445 asection *sec;
22b75d0a 2446
63c1f59d
AM		 2447 if (h->root.type == bfd_link_hash_indirect)
2448 return TRUE;
22b75d0a 2449
63c1f59d
AM		 2450 sec = readonly_dynrelocs (h);
2451 if (sec != NULL)
2452 {
2453 struct bfd_link_info *info = (struct bfd_link_info *) info_p;
22b75d0a 2454
63c1f59d
AM		 2455 info->flags |= DF_TEXTREL;
2456 info->callbacks->minfo
2457 (_("%B: dynamic relocation against `%T' in read-only section `%A'\n"),
2458 sec->owner, h->root.root.string, sec);
f0f07ad1 2459
63c1f59d
AM		 2460 /* Not an error, just cut short the traversal. */
2461 return FALSE;
22b75d0a
DM		 2462 }
2463 return TRUE;
2464}
2465
2466/* Return true if the dynamic symbol for a given section should be
2467 omitted when creating a shared library. */
2468
2469bfd_boolean
2470_bfd_sparc_elf_omit_section_dynsym (bfd *output_bfd,
2471 struct bfd_link_info *info,
2472 asection *p)
2473{
2474 /* We keep the .got section symbol so that explicit relocations
2475 against the _GLOBAL_OFFSET_TABLE_ symbol emitted in PIC mode
2476 can be turned into relocations against the .got symbol. */
2477 if (strcmp (p->name, ".got") == 0)
2478 return FALSE;
2479
2480 return _bfd_elf_link_omit_section_dynsym (output_bfd, info, p);
2481}
2482
2483/* Set the sizes of the dynamic sections. */
2484
2485bfd_boolean
2486_bfd_sparc_elf_size_dynamic_sections (bfd *output_bfd,
2487 struct bfd_link_info *info)
2488{
2489 struct _bfd_sparc_elf_link_hash_table *htab;
2490 bfd *dynobj;
2491 asection *s;
2492 bfd *ibfd;
2493
2494 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 2495 BFD_ASSERT (htab != NULL);
22b75d0a
DM		 2496 dynobj = htab->elf.dynobj;
2497 BFD_ASSERT (dynobj != NULL);
2498
2499 if (elf_hash_table (info)->dynamic_sections_created)
2500 {
2501 /* Set the contents of the .interp section to the interpreter. */
9b8b325a 2502 if (bfd_link_executable (info) && !info->nointerp)
07d6d2b8
AM		 2503 {
2504 s = bfd_get_linker_section (dynobj, ".interp");
2505 BFD_ASSERT (s != NULL);
2506 s->size = htab->dynamic_interpreter_size;
2507 s->contents = (unsigned char *) htab->dynamic_interpreter;
2508 htab->interp = s;
2509 }
22b75d0a
DM		 2510 }
2511
2512 /* Set up .got offsets for local syms, and space for local dynamic
2513 relocs. */
c72f2fb2 2514 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
22b75d0a
DM		 2515 {
2516 bfd_signed_vma *local_got;
2517 bfd_signed_vma *end_local_got;
2518 char *local_tls_type;
2519 bfd_size_type locsymcount;
2520 Elf_Internal_Shdr *symtab_hdr;
2521 asection *srel;
2522
0ffa91dd 2523 if (! is_sparc_elf (ibfd))
22b75d0a
DM		 2524 continue;
2525
2526 for (s = ibfd->sections; s != NULL; s = s->next)
2527 {
3bf083ed 2528 struct elf_dyn_relocs *p;
22b75d0a 2529
6edfbbad 2530 for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
22b75d0a
DM		 2531 {
2532 if (!bfd_is_abs_section (p->sec)
2533 && bfd_is_abs_section (p->sec->output_section))
2534 {
2535 /* Input section has been discarded, either because
2536 it is a copy of a linkonce section or due to
2537 linker script /DISCARD/, so we'll be discarding
2538 the relocs too. */
2539 }
3348747a
NS		 2540 else if (htab->is_vxworks
2541 && strcmp (p->sec->output_section->name,
2542 ".tls_vars") == 0)
2543 {
2544 /* Relocations in vxworks .tls_vars sections are
2545 handled specially by the loader. */
2546 }
22b75d0a
DM		 2547 else if (p->count != 0)
2548 {
2549 srel = elf_section_data (p->sec)->sreloc;
d0c9aeb3
DM		 2550 if (!htab->elf.dynamic_sections_created)
2551 srel = htab->elf.irelplt;
22b75d0a
DM		 2552 srel->size += p->count * SPARC_ELF_RELA_BYTES (htab);
2553 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
f0f07ad1
L		 2554 {
2555 info->flags |= DF_TEXTREL;
2556 info->callbacks->minfo (_("%B: dynamic relocation in read-only section `%A'\n"),
2557 p->sec->owner, p->sec);
2558 }
22b75d0a
DM		 2559 }
2560 }
2561 }
2562
2563 local_got = elf_local_got_refcounts (ibfd);
2564 if (!local_got)
2565 continue;
2566
0ffa91dd 2567 symtab_hdr = &elf_symtab_hdr (ibfd);
22b75d0a
DM		 2568 locsymcount = symtab_hdr->sh_info;
2569 end_local_got = local_got + locsymcount;
2570 local_tls_type = _bfd_sparc_elf_local_got_tls_type (ibfd);
72fbc6e5
DM		 2571 s = htab->elf.sgot;
2572 srel = htab->elf.srelgot;
22b75d0a
DM		 2573 for (; local_got < end_local_got; ++local_got, ++local_tls_type)
2574 {
2575 if (*local_got > 0)
2576 {
2577 *local_got = s->size;
2578 s->size += SPARC_ELF_WORD_BYTES (htab);
2579 if (*local_tls_type == GOT_TLS_GD)
2580 s->size += SPARC_ELF_WORD_BYTES (htab);
0e1862bb 2581 if (bfd_link_pic (info)
22b75d0a
DM		 2582 || *local_tls_type == GOT_TLS_GD
2583 || *local_tls_type == GOT_TLS_IE)
2584 srel->size += SPARC_ELF_RELA_BYTES (htab);
2585 }
2586 else
2587 *local_got = (bfd_vma) -1;
2588 }
2589 }
2590
2591 if (htab->tls_ldm_got.refcount > 0)
2592 {
2593 /* Allocate 2 got entries and 1 dynamic reloc for
2594 R_SPARC_TLS_LDM_{HI22,LO10} relocs. */
72fbc6e5
DM		 2595 htab->tls_ldm_got.offset = htab->elf.sgot->size;
2596 htab->elf.sgot->size += (2 * SPARC_ELF_WORD_BYTES (htab));
2597 htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
22b75d0a
DM		 2598 }
2599 else
2600 htab->tls_ldm_got.offset = -1;
2601
2602 /* Allocate global sym .plt and .got entries, and space for global
2603 sym dynamic relocs. */
2c3fc389 2604 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
22b75d0a 2605
d0c9aeb3
DM		 2606 /* Allocate .plt and .got entries, and space for local symbols. */
2607 htab_traverse (htab->loc_hash_table, allocate_local_dynrelocs, info);
2608
0fc9967d
JM		 2609 if (! ABI_64_P (output_bfd)
2610 && !htab->is_vxworks
22b75d0a
DM		 2611 && elf_hash_table (info)->dynamic_sections_created)
2612 {
0fc9967d
JM		 2613 /* Make space for the trailing nop in .plt. */
2614 if (htab->elf.splt->size > 0)
2615 htab->elf.splt->size += 1 * SPARC_INSN_BYTES;
22b75d0a
DM		 2616
2617 /* If the .got section is more than 0x1000 bytes, we add
2618 0x1000 to the value of _GLOBAL_OFFSET_TABLE_, so that 13
0fc9967d
JM		 2619 bit relocations have a greater chance of working.
2620
2621 FIXME: Make this optimization work for 64-bit too. */
72fbc6e5 2622 if (htab->elf.sgot->size >= 0x1000
22b75d0a
DM		 2623 && elf_hash_table (info)->hgot->root.u.def.value == 0)
2624 elf_hash_table (info)->hgot->root.u.def.value = 0x1000;
2625 }
2626
2627 /* The check_relocs and adjust_dynamic_symbol entry points have
2628 determined the sizes of the various dynamic sections. Allocate
2629 memory for them. */
2630 for (s = dynobj->sections; s != NULL; s = s->next)
2631 {
22b75d0a
DM		 2632 if ((s->flags & SEC_LINKER_CREATED) == 0)
2633 continue;
2634
72fbc6e5
DM		 2635 if (s == htab->elf.splt
2636 || s == htab->elf.sgot
9d19e4fd 2637 || s == htab->elf.sdynbss
5474d94f 2638 || s == htab->elf.sdynrelro
d0c9aeb3 2639 || s == htab->elf.iplt
72fbc6e5 2640 || s == htab->elf.sgotplt)
22b75d0a 2641 {
c456f082
AM		 2642 /* Strip this section if we don't need it; see the
2643 comment below. */
2644 }
0112cd26 2645 else if (CONST_STRNEQ (s->name, ".rela"))
c456f082
AM		 2646 {
2647 if (s->size != 0)
22b75d0a
DM		 2648 {
2649 /* We use the reloc_count field as a counter if we need
2650 to copy relocs into the output file. */
2651 s->reloc_count = 0;
2652 }
2653 }
c456f082 2654 else
22b75d0a 2655 {
c456f082 2656 /* It's not one of our sections. */
22b75d0a
DM		 2657 continue;
2658 }
2659
c456f082 2660 if (s->size == 0)
22b75d0a 2661 {
c456f082
AM		 2662 /* If we don't need this section, strip it from the
2663 output file. This is mostly to handle .rela.bss and
2664 .rela.plt. We must create both sections in
2665 create_dynamic_sections, because they must be created
2666 before the linker maps input sections to output
2667 sections. The linker does that before
2668 adjust_dynamic_symbol is called, and it is that
2669 function which decides whether anything needs to go
2670 into these sections. */
8423293d 2671 s->flags |= SEC_EXCLUDE;
22b75d0a
DM		 2672 continue;
2673 }
2674
c456f082
AM		 2675 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2676 continue;
2677
22b75d0a
DM		 2678 /* Allocate memory for the section contents. Zero the memory
2679 for the benefit of .rela.plt, which has 4 unused entries
2680 at the beginning, and we don't want garbage. */
2681 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
c456f082 2682 if (s->contents == NULL)
22b75d0a
DM		 2683 return FALSE;
2684 }
2685
2686 if (elf_hash_table (info)->dynamic_sections_created)
2687 {
2688 /* Add some entries to the .dynamic section. We fill in the
2689 values later, in _bfd_sparc_elf_finish_dynamic_sections, but we
2690 must add the entries now so that we get the correct size for
2691 the .dynamic section. The DT_DEBUG entry is filled in by the
2692 dynamic linker and used by the debugger. */
2693#define add_dynamic_entry(TAG, VAL) \
2694 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2695
0e1862bb 2696 if (bfd_link_executable (info))
22b75d0a
DM		 2697 {
2698 if (!add_dynamic_entry (DT_DEBUG, 0))
2699 return FALSE;
2700 }
2701
72fbc6e5 2702 if (htab->elf.srelplt->size != 0)
22b75d0a
DM		 2703 {
2704 if (!add_dynamic_entry (DT_PLTGOT, 0)
2705 || !add_dynamic_entry (DT_PLTRELSZ, 0)
2706 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2707 || !add_dynamic_entry (DT_JMPREL, 0))
2708 return FALSE;
2709 }
2710
2711 if (!add_dynamic_entry (DT_RELA, 0)
2712 || !add_dynamic_entry (DT_RELASZ, 0)
2713 || !add_dynamic_entry (DT_RELAENT,
2714 SPARC_ELF_RELA_BYTES (htab)))
2715 return FALSE;
2716
2717 /* If any dynamic relocs apply to a read-only section,
2718 then we need a DT_TEXTREL entry. */
2719 if ((info->flags & DF_TEXTREL) == 0)
63c1f59d 2720 elf_link_hash_traverse (&htab->elf, maybe_set_textrel, info);
22b75d0a
DM		 2721
2722 if (info->flags & DF_TEXTREL)
2723 {
2724 if (!add_dynamic_entry (DT_TEXTREL, 0))
2725 return FALSE;
2726 }
2727
2728 if (ABI_64_P (output_bfd))
2729 {
2730 int reg;
2731 struct _bfd_sparc_elf_app_reg * app_regs;
2732 struct elf_strtab_hash *dynstr;
2733 struct elf_link_hash_table *eht = elf_hash_table (info);
2734
2735 /* Add dynamic STT_REGISTER symbols and corresponding DT_SPARC_REGISTER
2736 entries if needed. */
2737 app_regs = _bfd_sparc_elf_hash_table (info)->app_regs;
2738 dynstr = eht->dynstr;
2739
2740 for (reg = 0; reg < 4; reg++)
2741 if (app_regs [reg].name != NULL)
2742 {
2743 struct elf_link_local_dynamic_entry *entry, *e;
2744
2745 if (!add_dynamic_entry (DT_SPARC_REGISTER, 0))
2746 return FALSE;
2747
2748 entry = (struct elf_link_local_dynamic_entry *)
2749 bfd_hash_allocate (&info->hash->table, sizeof (*entry));
2750 if (entry == NULL)
2751 return FALSE;
2752
2753 /* We cheat here a little bit: the symbol will not be local, so we
2754 put it at the end of the dynlocal linked list. We will fix it
2755 later on, as we have to fix other fields anyway. */
2756 entry->isym.st_value = reg < 2 ? reg + 2 : reg + 4;
2757 entry->isym.st_size = 0;
2758 if (*app_regs [reg].name != '\0')
2759 entry->isym.st_name
2760 = _bfd_elf_strtab_add (dynstr, app_regs[reg].name, FALSE);
2761 else
2762 entry->isym.st_name = 0;
2763 entry->isym.st_other = 0;
2764 entry->isym.st_info = ELF_ST_INFO (app_regs [reg].bind,
2765 STT_REGISTER);
2766 entry->isym.st_shndx = app_regs [reg].shndx;
35fc36a8 2767 entry->isym.st_target_internal = 0;
22b75d0a
DM		 2768 entry->next = NULL;
2769 entry->input_bfd = output_bfd;
2770 entry->input_indx = -1;
2771
2772 if (eht->dynlocal == NULL)
2773 eht->dynlocal = entry;
2774 else
2775 {
2776 for (e = eht->dynlocal; e->next; e = e->next)
2777 ;
2778 e->next = entry;
2779 }
2780 eht->dynsymcount++;
2781 }
2782 }
7a2b07ff
NS		 2783 if (htab->is_vxworks
2784 && !elf_vxworks_add_dynamic_entries (output_bfd, info))
2785 return FALSE;
22b75d0a
DM		 2786 }
2787#undef add_dynamic_entry
2788
2789 return TRUE;
2790}
2791\f
2792bfd_boolean
2793_bfd_sparc_elf_new_section_hook (bfd *abfd, asection *sec)
2794{
f592407e
AM		 2795 if (!sec->used_by_bfd)
2796 {
2797 struct _bfd_sparc_elf_section_data *sdata;
2798 bfd_size_type amt = sizeof (*sdata);
22b75d0a 2799
f592407e
AM		 2800 sdata = bfd_zalloc (abfd, amt);
2801 if (sdata == NULL)
2802 return FALSE;
2803 sec->used_by_bfd = sdata;
2804 }
22b75d0a
DM		 2805
2806 return _bfd_elf_new_section_hook (abfd, sec);
2807}
2808
2809bfd_boolean
2810_bfd_sparc_elf_relax_section (bfd *abfd ATTRIBUTE_UNUSED,
2811 struct bfd_section *section,
2812 struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
2813 bfd_boolean *again)
2814{
0e1862bb 2815 if (bfd_link_relocatable (link_info))
c8a1f254
NS		 2816 (*link_info->callbacks->einfo)
2817 (_("%P%F: --relax and -r may not be used together\n"));
2818
22b75d0a
DM		 2819 *again = FALSE;
2820 sec_do_relax (section) = 1;
2821 return TRUE;
2822}
2823\f
2824/* Return the base VMA address which should be subtracted from real addresses
2825 when resolving @dtpoff relocation.
2826 This is PT_TLS segment p_vaddr. */
2827
2828static bfd_vma
2829dtpoff_base (struct bfd_link_info *info)
2830{
2831 /* If tls_sec is NULL, we should have signalled an error already. */
2832 if (elf_hash_table (info)->tls_sec == NULL)
2833 return 0;
2834 return elf_hash_table (info)->tls_sec->vma;
2835}
2836
2837/* Return the relocation value for @tpoff relocation
2838 if STT_TLS virtual address is ADDRESS. */
2839
2840static bfd_vma
2841tpoff (struct bfd_link_info *info, bfd_vma address)
2842{
2843 struct elf_link_hash_table *htab = elf_hash_table (info);
1360ba76
RO		 2844 const struct elf_backend_data *bed = get_elf_backend_data (info->output_bfd);
2845 bfd_vma static_tls_size;
22b75d0a
DM		 2846
2847 /* If tls_sec is NULL, we should have signalled an error already. */
2848 if (htab->tls_sec == NULL)
2849 return 0;
1360ba76
RO		 2850
2851 /* Consider special static TLS alignment requirements. */
2852 static_tls_size = BFD_ALIGN (htab->tls_size, bed->static_tls_alignment);
2853 return address - static_tls_size - htab->tls_sec->vma;
22b75d0a
DM		 2854}
2855
00c50991
DM		 2856/* Return the relocation value for a %gdop relocation. */
2857
2858static bfd_vma
2859gdopoff (struct bfd_link_info *info, bfd_vma address)
2860{
2861 struct elf_link_hash_table *htab = elf_hash_table (info);
2862 bfd_vma got_base;
2863
2864 got_base = (htab->hgot->root.u.def.value
2865 + htab->hgot->root.u.def.section->output_offset
2866 + htab->hgot->root.u.def.section->output_section->vma);
2867
2868 return address - got_base;
2869}
2870
5b86074c
AM		 2871/* Return whether H is local and its ADDRESS is within 4G of
2872 _GLOBAL_OFFSET_TABLE_ and thus the offset may be calculated by a
2873 sethi, xor sequence. */
2874
2875static bfd_boolean
2876gdop_relative_offset_ok (struct bfd_link_info *info,
2877 struct elf_link_hash_entry *h,
2878 bfd_vma address ATTRIBUTE_UNUSED)
2879{
2880 if (!SYMBOL_REFERENCES_LOCAL (info, h))
2881 return FALSE;
2882 /* If H is undefined, ADDRESS will be zero. We can't allow a
2883 relative offset to "zero" when producing PIEs or shared libs.
2884 Note that to get here with an undefined symbol it must also be
2885 hidden or internal visibility. */
2886 if (bfd_link_pic (info)
2887 && h != NULL
2888 && (h->root.type == bfd_link_hash_undefweak
2889 || h->root.type == bfd_link_hash_undefined))
2890 return FALSE;
2891#ifdef BFD64
2892 return gdopoff (info, address) + ((bfd_vma) 1 << 32) < (bfd_vma) 2 << 32;
2893#else
2894 return TRUE;
2895#endif
2896}
2897
22b75d0a
DM		 2898/* Relocate a SPARC ELF section. */
2899
2900bfd_boolean
ab96bf03
AM		 2901_bfd_sparc_elf_relocate_section (bfd *output_bfd,
2902 struct bfd_link_info *info,
2903 bfd *input_bfd,
2904 asection *input_section,
2905 bfd_byte *contents,
2906 Elf_Internal_Rela *relocs,
2907 Elf_Internal_Sym *local_syms,
2908 asection **local_sections)
22b75d0a
DM		 2909{
2910 struct _bfd_sparc_elf_link_hash_table *htab;
2911 Elf_Internal_Shdr *symtab_hdr;
2912 struct elf_link_hash_entry **sym_hashes;
2913 bfd_vma *local_got_offsets;
2914 bfd_vma got_base;
2915 asection *sreloc;
2916 Elf_Internal_Rela *rel;
2917 Elf_Internal_Rela *relend;
2918 int num_relocs;
3348747a 2919 bfd_boolean is_vxworks_tls;
22b75d0a 2920
22b75d0a 2921 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 2922 BFD_ASSERT (htab != NULL);
0ffa91dd 2923 symtab_hdr = &elf_symtab_hdr (input_bfd);
22b75d0a
DM		 2924 sym_hashes = elf_sym_hashes (input_bfd);
2925 local_got_offsets = elf_local_got_offsets (input_bfd);
2926
2927 if (elf_hash_table (info)->hgot == NULL)
2928 got_base = 0;
2929 else
2930 got_base = elf_hash_table (info)->hgot->root.u.def.value;
2931
2932 sreloc = elf_section_data (input_section)->sreloc;
3348747a
NS		 2933 /* We have to handle relocations in vxworks .tls_vars sections
2934 specially, because the dynamic loader is 'weird'. */
0e1862bb 2935 is_vxworks_tls = (htab->is_vxworks && bfd_link_pic (info)
3348747a
NS		 2936 && !strcmp (input_section->output_section->name,
2937 ".tls_vars"));
22b75d0a
DM		 2938
2939 rel = relocs;
2940 if (ABI_64_P (output_bfd))
d4730f92 2941 num_relocs = NUM_SHDR_ENTRIES (_bfd_elf_single_rel_hdr (input_section));
22b75d0a
DM		 2942 else
2943 num_relocs = input_section->reloc_count;
2944 relend = relocs + num_relocs;
2945 for (; rel < relend; rel++)
2946 {
2947 int r_type, tls_type;
2948 reloc_howto_type *howto;
2949 unsigned long r_symndx;
2950 struct elf_link_hash_entry *h;
bb1dd176 2951 struct _bfd_sparc_elf_link_hash_entry *eh;
22b75d0a
DM		 2952 Elf_Internal_Sym *sym;
2953 asection *sec;
2954 bfd_vma relocation, off;
2955 bfd_reloc_status_type r;
2956 bfd_boolean is_plt = FALSE;
2957 bfd_boolean unresolved_reloc;
bb1dd176 2958 bfd_boolean resolved_to_zero;
ec1acaba 2959 bfd_boolean relative_reloc;
22b75d0a
DM		 2960
2961 r_type = SPARC_ELF_R_TYPE (rel->r_info);
2962 if (r_type == R_SPARC_GNU_VTINHERIT
2963 || r_type == R_SPARC_GNU_VTENTRY)
2964 continue;
2965
2966 if (r_type < 0 || r_type >= (int) R_SPARC_max_std)
2967 {
2968 bfd_set_error (bfd_error_bad_value);
2969 return FALSE;
2970 }
2971 howto = _bfd_sparc_elf_howto_table + r_type;
2972
22b75d0a
DM		 2973 r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
2974 h = NULL;
2975 sym = NULL;
2976 sec = NULL;
2977 unresolved_reloc = FALSE;
2978 if (r_symndx < symtab_hdr->sh_info)
2979 {
2980 sym = local_syms + r_symndx;
2981 sec = local_sections[r_symndx];
2982 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
d0c9aeb3 2983
0e1862bb 2984 if (!bfd_link_relocatable (info)
d0c9aeb3
DM		 2985 && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
2986 {
2987 /* Relocate against local STT_GNU_IFUNC symbol. */
2988 h = elf_sparc_get_local_sym_hash (htab, input_bfd,
2989 rel, FALSE);
2990 if (h == NULL)
2991 abort ();
2992
68ffbac6 2993 /* Set STT_GNU_IFUNC symbol value. */
d0c9aeb3
DM		 2994 h->root.u.def.value = sym->st_value;
2995 h->root.u.def.section = sec;
2996 }
22b75d0a
DM		 2997 }
2998 else
2999 {
62d887d4 3000 bfd_boolean warned, ignored;
22b75d0a
DM		 3001
3002 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
3003 r_symndx, symtab_hdr, sym_hashes,
3004 h, sec, relocation,
62d887d4 3005 unresolved_reloc, warned, ignored);
22b75d0a
DM		 3006 if (warned)
3007 {
3008 /* To avoid generating warning messages about truncated
3009 relocations, set the relocation's address to be the same as
3010 the start of this section. */
3011 if (input_section->output_section != NULL)
3012 relocation = input_section->output_section->vma;
3013 else
3014 relocation = 0;
3015 }
3016 }
3017
dbaa2011 3018 if (sec != NULL && discarded_section (sec))
e4067dbb 3019 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
545fd46b 3020 rel, 1, relend, howto, 0, contents);
ab96bf03 3021
0e1862bb 3022 if (bfd_link_relocatable (info))
ab96bf03
AM		 3023 continue;
3024
d0c9aeb3
DM		 3025 if (h != NULL
3026 && h->type == STT_GNU_IFUNC
3027 && h->def_regular)
3028 {
3029 asection *plt_sec;
3030 const char *name;
3031
3032 if ((input_section->flags & SEC_ALLOC) == 0
3033 || h->plt.offset == (bfd_vma) -1)
3034 abort ();
3035
3036 plt_sec = htab->elf.splt;
3037 if (! plt_sec)
3038 plt_sec =htab->elf.iplt;
3039
3040 switch (r_type)
3041 {
00c50991
DM		 3042 case R_SPARC_GOTDATA_OP:
3043 continue;
3044
d0c9aeb3
DM		 3045 case R_SPARC_GOTDATA_OP_HIX22:
3046 case R_SPARC_GOTDATA_OP_LOX10:
00c50991
DM		 3047 r_type = (r_type == R_SPARC_GOTDATA_OP_HIX22
3048 ? R_SPARC_GOT22
3049 : R_SPARC_GOT10);
3050 howto = _bfd_sparc_elf_howto_table + r_type;
3051 /* Fall through. */
3052
d0c9aeb3
DM		 3053 case R_SPARC_GOT10:
3054 case R_SPARC_GOT13:
3055 case R_SPARC_GOT22:
3056 if (htab->elf.sgot == NULL)
3057 abort ();
3058 off = h->got.offset;
3059 if (off == (bfd_vma) -1)
3060 abort();
3061 relocation = htab->elf.sgot->output_offset + off - got_base;
3062 goto do_relocation;
3063
3064 case R_SPARC_WPLT30:
3065 case R_SPARC_WDISP30:
3066 relocation = (plt_sec->output_section->vma
3067 + plt_sec->output_offset + h->plt.offset);
3068 goto do_relocation;
3069
3070 case R_SPARC_32:
3071 case R_SPARC_64:
0e1862bb 3072 if (bfd_link_pic (info) && h->non_got_ref)
d0c9aeb3
DM		 3073 {
3074 Elf_Internal_Rela outrel;
3075 bfd_vma offset;
3076
3077 offset = _bfd_elf_section_offset (output_bfd, info,
3078 input_section,
3079 rel->r_offset);
3080 if (offset == (bfd_vma) -1
3081 || offset == (bfd_vma) -2)
3082 abort();
3083
3084 outrel.r_offset = (input_section->output_section->vma
3085 + input_section->output_offset
3086 + offset);
3087
3088 if (h->dynindx == -1
3089 || h->forced_local
0e1862bb 3090 || bfd_link_executable (info))
d0c9aeb3
DM		 3091 {
3092 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
3093 0, R_SPARC_IRELATIVE);
3094 outrel.r_addend = relocation + rel->r_addend;
3095 }
3096 else
3097 {
3098 if (h->dynindx == -1)
3099 abort();
3100 outrel.r_info = SPARC_ELF_R_INFO (htab, rel, h->dynindx, r_type);
3101 outrel.r_addend = rel->r_addend;
3102 }
3103
3104 sparc_elf_append_rela (output_bfd, sreloc, &outrel);
3105 continue;
3106 }
3107
3108 relocation = (plt_sec->output_section->vma
3109 + plt_sec->output_offset + h->plt.offset);
3110 goto do_relocation;
3111
3112 case R_SPARC_HI22:
3113 case R_SPARC_LO10:
3114 /* We should only see such relocs in static links. */
0e1862bb 3115 if (bfd_link_pic (info))
d0c9aeb3
DM		 3116 abort();
3117 relocation = (plt_sec->output_section->vma
3118 + plt_sec->output_offset + h->plt.offset);
3119 goto do_relocation;
3120
3121 default:
3122 if (h->root.root.string)
3123 name = h->root.root.string;
3124 else
3125 name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym,
3126 NULL);
4eca0228 3127 _bfd_error_handler
695344c0 3128 /* xgettext:c-format */
d0c9aeb3
DM		 3129 (_("%B: relocation %s against STT_GNU_IFUNC "
3130 "symbol `%s' isn't handled by %s"), input_bfd,
3131 _bfd_sparc_elf_howto_table[r_type].name,
3132 name, __FUNCTION__);
3133 bfd_set_error (bfd_error_bad_value);
3134 return FALSE;
3135 }
3136 }
3137
bb1dd176
QZ		 3138 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
3139 resolved_to_zero = (eh != NULL
07d6d2b8 3140 && UNDEFINED_WEAK_RESOLVED_TO_ZERO (info, eh));
bb1dd176 3141
22b75d0a
DM		 3142 switch (r_type)
3143 {
739f7f82
DM		 3144 case R_SPARC_GOTDATA_OP_HIX22:
3145 case R_SPARC_GOTDATA_OP_LOX10:
5b86074c 3146 if (gdop_relative_offset_ok (info, h, relocation))
cc133f9f
JC		 3147 {
3148 r_type = (r_type == R_SPARC_GOTDATA_OP_HIX22
3149 ? R_SPARC_GOTDATA_HIX22
3150 : R_SPARC_GOTDATA_LOX10);
3151 howto = _bfd_sparc_elf_howto_table + r_type;
3152 }
00c50991
DM		 3153 break;
3154
3155 case R_SPARC_GOTDATA_OP:
5b86074c 3156 if (gdop_relative_offset_ok (info, h, relocation))
00c50991
DM		 3157 {
3158 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3159
3160 /* {ld,ldx} [%rs1 + %rs2], %rd --> add %rs1, %rs2, %rd */
3161 relocation = 0x80000000 | (insn & 0x3e07c01f);
3162 bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
3163 }
3164 continue;
3165 }
3166
3167 switch (r_type)
3168 {
3169 case R_SPARC_GOTDATA_HIX22:
3170 case R_SPARC_GOTDATA_LOX10:
3171 relocation = gdopoff (info, relocation);
3172 break;
739f7f82 3173
cc133f9f
JC		 3174 case R_SPARC_GOTDATA_OP_HIX22:
3175 case R_SPARC_GOTDATA_OP_LOX10:
22b75d0a
DM		 3176 case R_SPARC_GOT10:
3177 case R_SPARC_GOT13:
3178 case R_SPARC_GOT22:
3179 /* Relocation is to the entry for this symbol in the global
3180 offset table. */
72fbc6e5 3181 if (htab->elf.sgot == NULL)
22b75d0a
DM		 3182 abort ();
3183
ec1acaba 3184 relative_reloc = FALSE;
22b75d0a
DM		 3185 if (h != NULL)
3186 {
3187 bfd_boolean dyn;
3188
3189 off = h->got.offset;
3190 BFD_ASSERT (off != (bfd_vma) -1);
3191 dyn = elf_hash_table (info)->dynamic_sections_created;
3192
0e1862bb
L		 3193 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3194 bfd_link_pic (info),
3195 h)
3196 || (bfd_link_pic (info)
72fbc6e5 3197 && SYMBOL_REFERENCES_LOCAL (info, h)))
22b75d0a
DM		 3198 {
3199 /* This is actually a static link, or it is a
3200 -Bsymbolic link and the symbol is defined
3201 locally, or the symbol was forced to be local
3202 because of a version file. We must initialize
3203 this entry in the global offset table. Since the
3204 offset must always be a multiple of 8 for 64-bit
3205 and 4 for 32-bit, we use the least significant bit
3206 to record whether we have initialized it already.
3207
3208 When doing a dynamic link, we create a .rela.got
3209 relocation entry to initialize the value. This
3210 is done in the finish_dynamic_symbol routine. */
3211 if ((off & 1) != 0)
3212 off &= ~1;
3213 else
3214 {
ec1acaba
EB		 3215 if (h->dynindx == -1
3216 && !h->forced_local
3217 && h->root.type != bfd_link_hash_undefweak
3218 && bfd_link_pic (info))
3219 {
3220 /* If this symbol isn't dynamic in PIC
3221 generate R_SPARC_RELATIVE here. */
3222 relative_reloc = TRUE;
3223 }
a9d44aad
AM		 3224 else
3225 SPARC_ELF_PUT_WORD (htab, output_bfd, relocation,
3226 htab->elf.sgot->contents + off);
3227 h->got.offset |= 1;
22b75d0a
DM		 3228 }
3229 }
3230 else
3231 unresolved_reloc = FALSE;
3232 }
3233 else
3234 {
3235 BFD_ASSERT (local_got_offsets != NULL
3236 && local_got_offsets[r_symndx] != (bfd_vma) -1);
3237
3238 off = local_got_offsets[r_symndx];
3239
3240 /* The offset must always be a multiple of 8 on 64-bit and
3241 4 on 32-bit. We use the least significant bit to record
3242 whether we have already processed this entry. */
3243 if ((off & 1) != 0)
3244 off &= ~1;
3245 else
3246 {
0e1862bb 3247 if (bfd_link_pic (info))
a9d44aad
AM		 3248 relative_reloc = TRUE;
3249 else
3250 SPARC_ELF_PUT_WORD (htab, output_bfd, relocation,
3251 htab->elf.sgot->contents + off);
22b75d0a
DM		 3252 local_got_offsets[r_symndx] |= 1;
3253 }
3254 }
ec1acaba
EB		 3255
3256 if (relative_reloc)
3257 {
3258 asection *s;
3259 Elf_Internal_Rela outrel;
3260
3261 /* We need to generate a R_SPARC_RELATIVE reloc
3262 for the dynamic linker. */
3263 s = htab->elf.srelgot;
3264 BFD_ASSERT (s != NULL);
3265
3266 outrel.r_offset = (htab->elf.sgot->output_section->vma
3267 + htab->elf.sgot->output_offset
3268 + off);
3269 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
3270 0, R_SPARC_RELATIVE);
3271 outrel.r_addend = relocation;
ec1acaba 3272 sparc_elf_append_rela (output_bfd, s, &outrel);
a9d44aad
AM		 3273 /* Versions of glibc ld.so at least up to 2.26 wrongly
3274 add the section contents to the value calculated for
3275 a RELATIVE reloc. Zero the contents to work around
3276 this bug. */
3277 relocation = 0;
3278 SPARC_ELF_PUT_WORD (htab, output_bfd, relocation,
3279 htab->elf.sgot->contents + off);
ec1acaba
EB		 3280 }
3281
72fbc6e5 3282 relocation = htab->elf.sgot->output_offset + off - got_base;
22b75d0a
DM		 3283 break;
3284
3285 case R_SPARC_PLT32:
3286 case R_SPARC_PLT64:
3287 if (h == NULL || h->plt.offset == (bfd_vma) -1)
3288 {
3289 r_type = (r_type == R_SPARC_PLT32) ? R_SPARC_32 : R_SPARC_64;
3290 goto r_sparc_plt32;
3291 }
3292 /* Fall through. */
3293
3294 case R_SPARC_WPLT30:
3295 case R_SPARC_HIPLT22:
3296 case R_SPARC_LOPLT10:
3297 case R_SPARC_PCPLT32:
3298 case R_SPARC_PCPLT22:
3299 case R_SPARC_PCPLT10:
3300 r_sparc_wplt30:
3301 /* Relocation is to the entry for this symbol in the
3302 procedure linkage table. */
3303
3304 if (! ABI_64_P (output_bfd))
3305 {
3306 /* The Solaris native assembler will generate a WPLT30 reloc
3307 for a local symbol if you assemble a call from one
3308 section to another when using -K pic. We treat it as
3309 WDISP30. */
3310 if (h == NULL)
3311 break;
3312 }
68ffbac6 3313 /* PR 7027: We need similar behaviour for 64-bit binaries. */
af1fb11f
NC		 3314 else if (r_type == R_SPARC_WPLT30 && h == NULL)
3315 break;
22b75d0a
DM		 3316 else
3317 {
3318 BFD_ASSERT (h != NULL);
3319 }
3320
72fbc6e5 3321 if (h->plt.offset == (bfd_vma) -1 || htab->elf.splt == NULL)
22b75d0a
DM		 3322 {
3323 /* We didn't make a PLT entry for this symbol. This
3324 happens when statically linking PIC code, or when
3325 using -Bsymbolic. */
3326 break;
3327 }
3328
72fbc6e5
DM		 3329 relocation = (htab->elf.splt->output_section->vma
3330 + htab->elf.splt->output_offset
22b75d0a
DM		 3331 + h->plt.offset);
3332 unresolved_reloc = FALSE;
3333 if (r_type == R_SPARC_PLT32 || r_type == R_SPARC_PLT64)
3334 {
3335 r_type = r_type == R_SPARC_PLT32 ? R_SPARC_32 : R_SPARC_64;
3336 is_plt = TRUE;
3337 goto r_sparc_plt32;
3338 }
3339 break;
3340
3341 case R_SPARC_PC10:
3342 case R_SPARC_PC22:
3343 case R_SPARC_PC_HH22:
3344 case R_SPARC_PC_HM10:
3345 case R_SPARC_PC_LM22:
3346 if (h != NULL
3347 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
3348 break;
3349 /* Fall through. */
3350 case R_SPARC_DISP8:
3351 case R_SPARC_DISP16:
3352 case R_SPARC_DISP32:
3353 case R_SPARC_DISP64:
3354 case R_SPARC_WDISP30:
3355 case R_SPARC_WDISP22:
3356 case R_SPARC_WDISP19:
3357 case R_SPARC_WDISP16:
2615994e 3358 case R_SPARC_WDISP10:
22b75d0a
DM		 3359 case R_SPARC_8:
3360 case R_SPARC_16:
3361 case R_SPARC_32:
3362 case R_SPARC_HI22:
3363 case R_SPARC_22:
3364 case R_SPARC_13:
3365 case R_SPARC_LO10:
3366 case R_SPARC_UA16:
3367 case R_SPARC_UA32:
3368 case R_SPARC_10:
3369 case R_SPARC_11:
3370 case R_SPARC_64:
3371 case R_SPARC_OLO10:
3372 case R_SPARC_HH22:
3373 case R_SPARC_HM10:
3374 case R_SPARC_LM22:
3375 case R_SPARC_7:
3376 case R_SPARC_5:
3377 case R_SPARC_6:
3378 case R_SPARC_HIX22:
3379 case R_SPARC_LOX10:
3380 case R_SPARC_H44:
3381 case R_SPARC_M44:
3382 case R_SPARC_L44:
2615994e 3383 case R_SPARC_H34:
22b75d0a
DM		 3384 case R_SPARC_UA64:
3385 r_sparc_plt32:
3348747a
NS		 3386 if ((input_section->flags & SEC_ALLOC) == 0
3387 || is_vxworks_tls)
22b75d0a
DM		 3388 break;
3389
07d6d2b8
AM		 3390 /* Copy dynamic function pointer relocations. Don't generate
3391 dynamic relocations against resolved undefined weak symbols
3392 in PIE. */
0e1862bb 3393 if ((bfd_link_pic (info)
22b75d0a 3394 && (h == NULL
bb1dd176 3395 || ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
07d6d2b8 3396 && !resolved_to_zero)
bb1dd176 3397 || h->root.type != bfd_link_hash_undefweak))
22b75d0a 3398 && (! howto->pc_relative
72fbc6e5 3399 || !SYMBOL_CALLS_LOCAL (info, h)))
0e1862bb 3400 || (!bfd_link_pic (info)
22b75d0a
DM		 3401 && h != NULL
3402 && h->dynindx != -1
3403 && !h->non_got_ref
3404 && ((h->def_dynamic
3405 && !h->def_regular)
bb1dd176 3406 || (h->root.type == bfd_link_hash_undefweak
07d6d2b8 3407 && !resolved_to_zero)
22b75d0a
DM		 3408 || h->root.type == bfd_link_hash_undefined)))
3409 {
3410 Elf_Internal_Rela outrel;
3411 bfd_boolean skip, relocate = FALSE;
3412
3413 /* When generating a shared object, these relocations
3414 are copied into the output file to be resolved at run
3415 time. */
3416
3417 BFD_ASSERT (sreloc != NULL);
3418
3419 skip = FALSE;
3420
3421 outrel.r_offset =
3422 _bfd_elf_section_offset (output_bfd, info, input_section,
3423 rel->r_offset);
3424 if (outrel.r_offset == (bfd_vma) -1)
3425 skip = TRUE;
3426 else if (outrel.r_offset == (bfd_vma) -2)
3427 skip = TRUE, relocate = TRUE;
3428 outrel.r_offset += (input_section->output_section->vma
3429 + input_section->output_offset);
3430
3431 /* Optimize unaligned reloc usage now that we know where
3432 it finally resides. */
3433 switch (r_type)
3434 {
3435 case R_SPARC_16:
3436 if (outrel.r_offset & 1)
3437 r_type = R_SPARC_UA16;
3438 break;
3439 case R_SPARC_UA16:
3440 if (!(outrel.r_offset & 1))
3441 r_type = R_SPARC_16;
3442 break;
3443 case R_SPARC_32:
3444 if (outrel.r_offset & 3)
3445 r_type = R_SPARC_UA32;
3446 break;
3447 case R_SPARC_UA32:
3448 if (!(outrel.r_offset & 3))
3449 r_type = R_SPARC_32;
3450 break;
3451 case R_SPARC_64:
3452 if (outrel.r_offset & 7)
3453 r_type = R_SPARC_UA64;
3454 break;
3455 case R_SPARC_UA64:
3456 if (!(outrel.r_offset & 7))
3457 r_type = R_SPARC_64;
3458 break;
07d6d2b8 3459 case R_SPARC_DISP8:
22b75d0a 3460 case R_SPARC_DISP16:
07d6d2b8
AM		 3461 case R_SPARC_DISP32:
3462 case R_SPARC_DISP64:
22b75d0a
DM		 3463 /* If the symbol is not dynamic, we should not keep
3464 a dynamic relocation. But an .rela.* slot has been
3465 allocated for it, output R_SPARC_NONE.
3466 FIXME: Add code tracking needed dynamic relocs as
3467 e.g. i386 has. */
3468 if (h->dynindx == -1)
3469 skip = TRUE, relocate = TRUE;
3470 break;
3471 }
3472
3473 if (skip)
3474 memset (&outrel, 0, sizeof outrel);
3475 /* h->dynindx may be -1 if the symbol was marked to
3476 become local. */
886a2506
NC		 3477 else if (h != NULL
3478 && h->dynindx != -1
3479 && (_bfd_sparc_elf_howto_table[r_type].pc_relative
0e1862bb 3480 || !bfd_link_pic (info)
72fbc6e5 3481 || !SYMBOLIC_BIND (info, h)
22b75d0a
DM		 3482 || !h->def_regular))
3483 {
3484 BFD_ASSERT (h->dynindx != -1);
3485 outrel.r_info = SPARC_ELF_R_INFO (htab, rel, h->dynindx, r_type);
3486 outrel.r_addend = rel->r_addend;
3487 }
3488 else
3489 {
7160c10d
JC		 3490 if ( (!ABI_64_P (output_bfd) && r_type == R_SPARC_32)
3491 || (ABI_64_P (output_bfd) && r_type == R_SPARC_64))
22b75d0a
DM		 3492 {
3493 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
3494 0, R_SPARC_RELATIVE);
3495 outrel.r_addend = relocation + rel->r_addend;
3496 }
3497 else
3498 {
3499 long indx;
3500
74541ad4
AM		 3501 outrel.r_addend = relocation + rel->r_addend;
3502
22b75d0a 3503 if (is_plt)
72fbc6e5 3504 sec = htab->elf.splt;
22b75d0a
DM		 3505
3506 if (bfd_is_abs_section (sec))
3507 indx = 0;
3508 else if (sec == NULL || sec->owner == NULL)
3509 {
3510 bfd_set_error (bfd_error_bad_value);
3511 return FALSE;
3512 }
3513 else
3514 {
3515 asection *osec;
3516
74541ad4
AM		 3517 /* We are turning this relocation into one
3518 against a section symbol. It would be
3519 proper to subtract the symbol's value,
3520 osec->vma, from the emitted reloc addend,
3521 but ld.so expects buggy relocs. */
22b75d0a
DM		 3522 osec = sec->output_section;
3523 indx = elf_section_data (osec)->dynindx;
3524
74541ad4
AM		 3525 if (indx == 0)
3526 {
3527 osec = htab->elf.text_index_section;
3528 indx = elf_section_data (osec)->dynindx;
3529 }
3530
22b75d0a
DM		 3531 /* FIXME: we really should be able to link non-pic
3532 shared libraries. */
3533 if (indx == 0)
3534 {
3535 BFD_FAIL ();
4eca0228 3536 _bfd_error_handler
22b75d0a
DM		 3537 (_("%B: probably compiled without -fPIC?"),
3538 input_bfd);
3539 bfd_set_error (bfd_error_bad_value);
3540 return FALSE;
3541 }
3542 }
3543
74541ad4
AM		 3544 outrel.r_info = SPARC_ELF_R_INFO (htab, rel, indx,
3545 r_type);
22b75d0a
DM		 3546 }
3547 }
3548
39817122 3549 sparc_elf_append_rela (output_bfd, sreloc, &outrel);
22b75d0a
DM		 3550
3551 /* This reloc will be computed at runtime, so there's no
3552 need to do anything now. */
3553 if (! relocate)
3554 continue;
3555 }
3556 break;
3557
3558 case R_SPARC_TLS_GD_HI22:
3559 if (! ABI_64_P (input_bfd)
3560 && ! _bfd_sparc_elf_tdata (input_bfd)->has_tlsgd)
3561 {
3562 /* R_SPARC_REV32 used the same reloc number as
3563 R_SPARC_TLS_GD_HI22. */
3564 r_type = R_SPARC_REV32;
3565 break;
3566 }
3567 /* Fall through */
3568
3569 case R_SPARC_TLS_GD_LO10:
3570 case R_SPARC_TLS_IE_HI22:
3571 case R_SPARC_TLS_IE_LO10:
3572 r_type = sparc_elf_tls_transition (info, input_bfd, r_type, h == NULL);
3573 tls_type = GOT_UNKNOWN;
3574 if (h == NULL && local_got_offsets)
3575 tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
3576 else if (h != NULL)
3577 {
3578 tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
0fb7012e 3579 if (bfd_link_executable (info)
0e1862bb
L		 3580 && h->dynindx == -1
3581 && tls_type == GOT_TLS_IE)
22b75d0a
DM		 3582 switch (SPARC_ELF_R_TYPE (rel->r_info))
3583 {
3584 case R_SPARC_TLS_GD_HI22:
3585 case R_SPARC_TLS_IE_HI22:
3586 r_type = R_SPARC_TLS_LE_HIX22;
3587 break;
3588 default:
3589 r_type = R_SPARC_TLS_LE_LOX10;
3590 break;
3591 }
3592 }
3593 if (tls_type == GOT_TLS_IE)
3594 switch (r_type)
3595 {
3596 case R_SPARC_TLS_GD_HI22:
3597 r_type = R_SPARC_TLS_IE_HI22;
3598 break;
3599 case R_SPARC_TLS_GD_LO10:
3600 r_type = R_SPARC_TLS_IE_LO10;
3601 break;
3602 }
3603
3604 if (r_type == R_SPARC_TLS_LE_HIX22)
3605 {
3606 relocation = tpoff (info, relocation);
3607 break;
3608 }
3609 if (r_type == R_SPARC_TLS_LE_LOX10)
3610 {
3611 /* Change add into xor. */
3612 relocation = tpoff (info, relocation);
3613 bfd_put_32 (output_bfd, (bfd_get_32 (input_bfd,
3614 contents + rel->r_offset)
3615 | 0x80182000), contents + rel->r_offset);
3616 break;
3617 }
3618
3619 if (h != NULL)
3620 {
3621 off = h->got.offset;
3622 h->got.offset |= 1;
3623 }
3624 else
3625 {
3626 BFD_ASSERT (local_got_offsets != NULL);
3627 off = local_got_offsets[r_symndx];
3628 local_got_offsets[r_symndx] |= 1;
3629 }
3630
3631 r_sparc_tlsldm:
72fbc6e5 3632 if (htab->elf.sgot == NULL)
22b75d0a
DM		 3633 abort ();
3634
3635 if ((off & 1) != 0)
3636 off &= ~1;
3637 else
3638 {
3639 Elf_Internal_Rela outrel;
3640 int dr_type, indx;
3641
72fbc6e5 3642 if (htab->elf.srelgot == NULL)
22b75d0a
DM		 3643 abort ();
3644
72fbc6e5
DM		 3645 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
3646 htab->elf.sgot->contents + off);
3647 outrel.r_offset = (htab->elf.sgot->output_section->vma
3648 + htab->elf.sgot->output_offset + off);
22b75d0a
DM		 3649 indx = h && h->dynindx != -1 ? h->dynindx : 0;
3650 if (r_type == R_SPARC_TLS_IE_HI22
3651 || r_type == R_SPARC_TLS_IE_LO10)
3652 dr_type = SPARC_ELF_TPOFF_RELOC (htab);
3653 else
3654 dr_type = SPARC_ELF_DTPMOD_RELOC (htab);
3655 if (dr_type == SPARC_ELF_TPOFF_RELOC (htab) && indx == 0)
3656 outrel.r_addend = relocation - dtpoff_base (info);
3657 else
3658 outrel.r_addend = 0;
3659 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, indx, dr_type);
72fbc6e5 3660 sparc_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel);
22b75d0a
DM		 3661
3662 if (r_type == R_SPARC_TLS_GD_HI22
3663 || r_type == R_SPARC_TLS_GD_LO10)
3664 {
3665 if (indx == 0)
3666 {
07d6d2b8 3667 BFD_ASSERT (! unresolved_reloc);
22b75d0a
DM		 3668 SPARC_ELF_PUT_WORD (htab, output_bfd,
3669 relocation - dtpoff_base (info),
72fbc6e5 3670 (htab->elf.sgot->contents + off
22b75d0a
DM		 3671 + SPARC_ELF_WORD_BYTES (htab)));
3672 }
3673 else
3674 {
3675 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
72fbc6e5 3676 (htab->elf.sgot->contents + off
22b75d0a
DM		 3677 + SPARC_ELF_WORD_BYTES (htab)));
3678 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, indx,
3679 SPARC_ELF_DTPOFF_RELOC (htab));
3680 outrel.r_offset += SPARC_ELF_WORD_BYTES (htab);
72fbc6e5 3681 sparc_elf_append_rela (output_bfd, htab->elf.srelgot,
39817122 3682 &outrel);
22b75d0a
DM		 3683 }
3684 }
3685 else if (dr_type == SPARC_ELF_DTPMOD_RELOC (htab))
3686 {
3687 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
72fbc6e5 3688 (htab->elf.sgot->contents + off
22b75d0a
DM		 3689 + SPARC_ELF_WORD_BYTES (htab)));
3690 }
3691 }
3692
3693 if (off >= (bfd_vma) -2)
3694 abort ();
3695
72fbc6e5 3696 relocation = htab->elf.sgot->output_offset + off - got_base;
22b75d0a
DM		 3697 unresolved_reloc = FALSE;
3698 howto = _bfd_sparc_elf_howto_table + r_type;
3699 break;
3700
3701 case R_SPARC_TLS_LDM_HI22:
3702 case R_SPARC_TLS_LDM_LO10:
0e1862bb 3703 if (! bfd_link_pic (info))
22b75d0a
DM		 3704 {
3705 bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
3706 continue;
3707 }
3708 off = htab->tls_ldm_got.offset;
3709 htab->tls_ldm_got.offset |= 1;
3710 goto r_sparc_tlsldm;
3711
3712 case R_SPARC_TLS_LDO_HIX22:
3713 case R_SPARC_TLS_LDO_LOX10:
0e1862bb 3714 if (bfd_link_pic (info))
22b75d0a
DM		 3715 {
3716 relocation -= dtpoff_base (info);
3717 break;
3718 }
3719
3720 r_type = (r_type == R_SPARC_TLS_LDO_HIX22
3721 ? R_SPARC_TLS_LE_HIX22 : R_SPARC_TLS_LE_LOX10);
3722 /* Fall through. */
3723
3724 case R_SPARC_TLS_LE_HIX22:
3725 case R_SPARC_TLS_LE_LOX10:
0fb7012e 3726 if (!bfd_link_executable (info))
22b75d0a
DM		 3727 {
3728 Elf_Internal_Rela outrel;
c7e2358a 3729 bfd_boolean skip;
22b75d0a
DM		 3730
3731 BFD_ASSERT (sreloc != NULL);
3732 skip = FALSE;
3733 outrel.r_offset =
3734 _bfd_elf_section_offset (output_bfd, info, input_section,
3735 rel->r_offset);
3736 if (outrel.r_offset == (bfd_vma) -1)
3737 skip = TRUE;
3738 else if (outrel.r_offset == (bfd_vma) -2)
c7e2358a 3739 skip = TRUE;
22b75d0a
DM		 3740 outrel.r_offset += (input_section->output_section->vma
3741 + input_section->output_offset);
3742 if (skip)
3743 memset (&outrel, 0, sizeof outrel);
3744 else
3745 {
3746 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, r_type);
3747 outrel.r_addend = relocation - dtpoff_base (info)
3748 + rel->r_addend;
3749 }
3750
39817122 3751 sparc_elf_append_rela (output_bfd, sreloc, &outrel);
22b75d0a
DM		 3752 continue;
3753 }
3754 relocation = tpoff (info, relocation);
3755 break;
3756
3757 case R_SPARC_TLS_LDM_CALL:
0fb7012e 3758 if (bfd_link_executable (info))
22b75d0a
DM		 3759 {
3760 /* mov %g0, %o0 */
3761 bfd_put_32 (output_bfd, 0x90100000, contents + rel->r_offset);
3762 continue;
3763 }
3764 /* Fall through */
3765
3766 case R_SPARC_TLS_GD_CALL:
3767 tls_type = GOT_UNKNOWN;
3768 if (h == NULL && local_got_offsets)
3769 tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
3770 else if (h != NULL)
3771 tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
0fb7012e 3772 if (bfd_link_executable (info)
22b75d0a
DM		 3773 || (r_type == R_SPARC_TLS_GD_CALL && tls_type == GOT_TLS_IE))
3774 {
abd242a9 3775 Elf_Internal_Rela *rel2;
22b75d0a
DM		 3776 bfd_vma insn;
3777
0e1862bb 3778 if (!bfd_link_pic (info) && (h == NULL || h->dynindx == -1))
22b75d0a
DM		 3779 {
3780 /* GD -> LE */
3781 bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
3782 continue;
3783 }
3784
3785 /* GD -> IE */
3786 if (rel + 1 < relend
3787 && SPARC_ELF_R_TYPE (rel[1].r_info) == R_SPARC_TLS_GD_ADD
3788 && rel[1].r_offset == rel->r_offset + 4
3789 && SPARC_ELF_R_SYMNDX (htab, rel[1].r_info) == r_symndx
3790 && (((insn = bfd_get_32 (input_bfd,
3791 contents + rel[1].r_offset))
3792 >> 25) & 0x1f) == 8)
3793 {
3794 /* We have
3795 call __tls_get_addr, %tgd_call(foo)
3796 add %reg1, %reg2, %o0, %tgd_add(foo)
3797 and change it into IE:
3798 {ld,ldx} [%reg1 + %reg2], %o0, %tie_ldx(foo)
3799 add %g7, %o0, %o0, %tie_add(foo).
3800 add is 0x80000000 | (rd << 25) | (rs1 << 14) | rs2,
3801 ld is 0xc0000000 | (rd << 25) | (rs1 << 14) | rs2,
3802 ldx is 0xc0580000 | (rd << 25) | (rs1 << 14) | rs2. */
3803 bfd_put_32 (output_bfd, insn | (ABI_64_P (output_bfd) ? 0xc0580000 : 0xc0000000),
3804 contents + rel->r_offset);
3805 bfd_put_32 (output_bfd, 0x9001c008,
3806 contents + rel->r_offset + 4);
3807 rel++;
3808 continue;
3809 }
3810
abd242a9
DM		 3811 /* We cannot just overwrite the delay slot instruction,
3812 as it might be what puts the %o0 argument to
3813 __tls_get_addr into place. So we have to transpose
3814 the delay slot with the add we patch in. */
3815 insn = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
3816 bfd_put_32 (output_bfd, insn,
3817 contents + rel->r_offset);
3818 bfd_put_32 (output_bfd, 0x9001c008,
3819 contents + rel->r_offset + 4);
3820
3821 rel2 = rel;
3822 while ((rel2 = sparc_elf_find_reloc_at_ofs (rel2 + 1, relend,
3823 rel->r_offset + 4))
3824 != NULL)
3825 {
3826 /* If the instruction we moved has a relocation attached to
3827 it, adjust the offset so that it will apply to the correct
3828 instruction. */
3829 rel2->r_offset -= 4;
3830 }
22b75d0a
DM		 3831 continue;
3832 }
3833
3834 h = (struct elf_link_hash_entry *)
3835 bfd_link_hash_lookup (info->hash, "__tls_get_addr", FALSE,
3836 FALSE, TRUE);
3837 BFD_ASSERT (h != NULL);
3838 r_type = R_SPARC_WPLT30;
3839 howto = _bfd_sparc_elf_howto_table + r_type;
3840 goto r_sparc_wplt30;
3841
3842 case R_SPARC_TLS_GD_ADD:
3843 tls_type = GOT_UNKNOWN;
3844 if (h == NULL && local_got_offsets)
3845 tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
3846 else if (h != NULL)
3847 tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
0e1862bb 3848 if (! bfd_link_pic (info) || tls_type == GOT_TLS_IE)
22b75d0a
DM		 3849 {
3850 /* add %reg1, %reg2, %reg3, %tgd_add(foo)
3851 changed into IE:
3852 {ld,ldx} [%reg1 + %reg2], %reg3, %tie_ldx(foo)
3853 or LE:
3854 add %g7, %reg2, %reg3. */
3855 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
0e1862bb 3856 if ((h != NULL && h->dynindx != -1) || bfd_link_pic (info))
22b75d0a
DM		 3857 relocation = insn | (ABI_64_P (output_bfd) ? 0xc0580000 : 0xc0000000);
3858 else
3859 relocation = (insn & ~0x7c000) | 0x1c000;
3860 bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
3861 }
3862 continue;
3863
3864 case R_SPARC_TLS_LDM_ADD:
0e1862bb 3865 if (! bfd_link_pic (info))
22b75d0a
DM		 3866 bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
3867 continue;
3868
3869 case R_SPARC_TLS_LDO_ADD:
0e1862bb 3870 if (! bfd_link_pic (info))
22b75d0a
DM		 3871 {
3872 /* Change rs1 into %g7. */
3873 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3874 insn = (insn & ~0x7c000) | 0x1c000;
3875 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
3876 }
3877 continue;
3878
3879 case R_SPARC_TLS_IE_LD:
3880 case R_SPARC_TLS_IE_LDX:
0fb7012e 3881 if (bfd_link_executable (info) && (h == NULL || h->dynindx == -1))
22b75d0a
DM		 3882 {
3883 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3884 int rs2 = insn & 0x1f;
3885 int rd = (insn >> 25) & 0x1f;
3886
3887 if (rs2 == rd)
3888 relocation = SPARC_NOP;
3889 else
3890 relocation = 0x80100000 | (insn & 0x3e00001f);
3891 bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
3892 }
3893 continue;
3894
3895 case R_SPARC_TLS_IE_ADD:
3896 /* Totally useless relocation. */
3897 continue;
3898
3899 case R_SPARC_TLS_DTPOFF32:
3900 case R_SPARC_TLS_DTPOFF64:
3901 relocation -= dtpoff_base (info);
3902 break;
3903
3904 default:
3905 break;
3906 }
3907
3908 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
3909 because such sections are not SEC_ALLOC and thus ld.so will
3910 not process them. */
3911 if (unresolved_reloc
3912 && !((input_section->flags & SEC_DEBUGGING) != 0
1d5316ab
AM		 3913 && h->def_dynamic)
3914 && _bfd_elf_section_offset (output_bfd, info, input_section,
3915 rel->r_offset) != (bfd_vma) -1)
4eca0228 3916 _bfd_error_handler
695344c0 3917 /* xgettext:c-format */
d42c267e 3918 (_("%B(%A+%#Lx): unresolvable %s relocation against symbol `%s'"),
22b75d0a
DM		 3919 input_bfd,
3920 input_section,
d42c267e 3921 rel->r_offset,
843fe662 3922 howto->name,
22b75d0a
DM		 3923 h->root.root.string);
3924
3925 r = bfd_reloc_continue;
3926 if (r_type == R_SPARC_OLO10)
3927 {
3928 bfd_vma x;
3929
3930 if (! ABI_64_P (output_bfd))
3931 abort ();
3932
3933 relocation += rel->r_addend;
3934 relocation = (relocation & 0x3ff) + ELF64_R_TYPE_DATA (rel->r_info);
3935
3936 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3937 x = (x & ~(bfd_vma) 0x1fff) | (relocation & 0x1fff);
3938 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3939
3940 r = bfd_check_overflow (howto->complain_on_overflow,
3941 howto->bitsize, howto->rightshift,
3942 bfd_arch_bits_per_address (input_bfd),
3943 relocation);
3944 }
3945 else if (r_type == R_SPARC_WDISP16)
3946 {
3947 bfd_vma x;
3948
3949 relocation += rel->r_addend;
3950 relocation -= (input_section->output_section->vma
3951 + input_section->output_offset);
3952 relocation -= rel->r_offset;
3953
3954 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3955 x |= ((((relocation >> 2) & 0xc000) << 6)
3956 | ((relocation >> 2) & 0x3fff));
3957 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3958
2615994e
DM		 3959 r = bfd_check_overflow (howto->complain_on_overflow,
3960 howto->bitsize, howto->rightshift,
3961 bfd_arch_bits_per_address (input_bfd),
3962 relocation);
3963 }
3964 else if (r_type == R_SPARC_WDISP10)
3965 {
3966 bfd_vma x;
3967
3968 relocation += rel->r_addend;
3969 relocation -= (input_section->output_section->vma
3970 + input_section->output_offset);
3971 relocation -= rel->r_offset;
3972
3973 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3974 x |= ((((relocation >> 2) & 0x300) << 11)
3975 | (((relocation >> 2) & 0xff) << 5));
3976 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3977
22b75d0a
DM		 3978 r = bfd_check_overflow (howto->complain_on_overflow,
3979 howto->bitsize, howto->rightshift,
3980 bfd_arch_bits_per_address (input_bfd),
3981 relocation);
3982 }
3983 else if (r_type == R_SPARC_REV32)
3984 {
3985 bfd_vma x;
3986
3987 relocation = relocation + rel->r_addend;
3988
3989 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3990 x = x + relocation;
3991 bfd_putl32 (/*input_bfd,*/ x, contents + rel->r_offset);
3992 r = bfd_reloc_ok;
3993 }
3994 else if (r_type == R_SPARC_TLS_LDO_HIX22
3995 || r_type == R_SPARC_TLS_LE_HIX22)
3996 {
3997 bfd_vma x;
3998
3999 relocation += rel->r_addend;
4000 if (r_type == R_SPARC_TLS_LE_HIX22)
4001 relocation ^= MINUS_ONE;
4002
4003 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4004 x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
4005 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4006 r = bfd_reloc_ok;
4007 }
4008 else if (r_type == R_SPARC_TLS_LDO_LOX10
4009 || r_type == R_SPARC_TLS_LE_LOX10)
4010 {
4011 bfd_vma x;
4012
4013 relocation += rel->r_addend;
4014 relocation &= 0x3ff;
4015 if (r_type == R_SPARC_TLS_LE_LOX10)
4016 relocation |= 0x1c00;
4017
4018 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4019 x = (x & ~(bfd_vma) 0x1fff) | relocation;
4020 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4021
4022 r = bfd_reloc_ok;
4023 }
00c50991 4024 else if (r_type == R_SPARC_HIX22
cc133f9f
JC		 4025 || r_type == R_SPARC_GOTDATA_HIX22
4026 || r_type == R_SPARC_GOTDATA_OP_HIX22)
22b75d0a
DM		 4027 {
4028 bfd_vma x;
4029
4030 relocation += rel->r_addend;
00c50991
DM		 4031 if (r_type == R_SPARC_HIX22
4032 || (bfd_signed_vma) relocation < 0)
4033 relocation = relocation ^ MINUS_ONE;
22b75d0a
DM		 4034
4035 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4036 x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
4037 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4038
4039 r = bfd_check_overflow (howto->complain_on_overflow,
4040 howto->bitsize, howto->rightshift,
4041 bfd_arch_bits_per_address (input_bfd),
4042 relocation);
4043 }
00c50991 4044 else if (r_type == R_SPARC_LOX10
cc133f9f
JC		 4045 || r_type == R_SPARC_GOTDATA_LOX10
4046 || r_type == R_SPARC_GOTDATA_OP_LOX10)
22b75d0a
DM		 4047 {
4048 bfd_vma x;
4049
4050 relocation += rel->r_addend;
00c50991
DM		 4051 if (r_type == R_SPARC_LOX10
4052 || (bfd_signed_vma) relocation < 0)
4053 relocation = (relocation & 0x3ff) | 0x1c00;
4054 else
4055 relocation = (relocation & 0x3ff);
22b75d0a
DM		 4056
4057 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4058 x = (x & ~(bfd_vma) 0x1fff) | relocation;
4059 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4060
4061 r = bfd_reloc_ok;
4062 }
4063 else if ((r_type == R_SPARC_WDISP30 || r_type == R_SPARC_WPLT30)
4064 && sec_do_relax (input_section)
4065 && rel->r_offset + 4 < input_section->size)
4066 {
4067#define G0 0
4068#define O7 15
4069#define XCC (2 << 20)
4070#define COND(x) (((x)&0xf)<<25)
4071#define CONDA COND(0x8)
4072#define INSN_BPA (F2(0,1) | CONDA | BPRED | XCC)
4073#define INSN_BA (F2(0,2) | CONDA)
4074#define INSN_OR F3(2, 0x2, 0)
4075#define INSN_NOP F2(0,4)
4076
4077 bfd_vma x, y;
4078
4079 /* If the instruction is a call with either:
4080 restore
4081 arithmetic instruction with rd == %o7
4082 where rs1 != %o7 and rs2 if it is register != %o7
4083 then we can optimize if the call destination is near
4084 by changing the call into a branch always. */
4085 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4086 y = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
4087 if ((x & OP(~0)) == OP(1) && (y & OP(~0)) == OP(2))
4088 {
4089 if (((y & OP3(~0)) == OP3(0x3d) /* restore */
4090 || ((y & OP3(0x28)) == 0 /* arithmetic */
4091 && (y & RD(~0)) == RD(O7)))
4092 && (y & RS1(~0)) != RS1(O7)
4093 && ((y & F3I(~0))
4094 || (y & RS2(~0)) != RS2(O7)))
4095 {
4096 bfd_vma reloc;
4097
4098 reloc = relocation + rel->r_addend - rel->r_offset;
4099 reloc -= (input_section->output_section->vma
4100 + input_section->output_offset);
4101
4102 /* Ensure the branch fits into simm22. */
4103 if ((reloc & 3) == 0
4104 && ((reloc & ~(bfd_vma)0x7fffff) == 0
4105 || ((reloc | 0x7fffff) == ~(bfd_vma)0)))
4106 {
4107 reloc >>= 2;
4108
4109 /* Check whether it fits into simm19. */
4110 if (((reloc & 0x3c0000) == 0
4111 || (reloc & 0x3c0000) == 0x3c0000)
4112 && (ABI_64_P (output_bfd)
4113 || elf_elfheader (output_bfd)->e_flags & EF_SPARC_32PLUS))
4114 x = INSN_BPA | (reloc & 0x7ffff); /* ba,pt %xcc */
4115 else
4116 x = INSN_BA | (reloc & 0x3fffff); /* ba */
4117 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4118 r = bfd_reloc_ok;
4119 if (rel->r_offset >= 4
4120 && (y & (0xffffffff ^ RS1(~0)))
4121 == (INSN_OR | RD(O7) | RS2(G0)))
4122 {
4123 bfd_vma z;
4124 unsigned int reg;
4125
4126 z = bfd_get_32 (input_bfd,
4127 contents + rel->r_offset - 4);
4128 if ((z & (0xffffffff ^ RD(~0)))
4129 != (INSN_OR | RS1(O7) | RS2(G0)))
597e138c 4130 continue;
22b75d0a
DM		 4131
4132 /* The sequence was
4133 or %o7, %g0, %rN
4134 call foo
4135 or %rN, %g0, %o7
4136
4137 If call foo was replaced with ba, replace
4138 or %rN, %g0, %o7 with nop. */
4139
4140 reg = (y & RS1(~0)) >> 14;
4141 if (reg != ((z & RD(~0)) >> 25)
4142 || reg == G0 || reg == O7)
597e138c 4143 continue;
22b75d0a
DM		 4144
4145 bfd_put_32 (input_bfd, (bfd_vma) INSN_NOP,
4146 contents + rel->r_offset + 4);
4147 }
4148
4149 }
4150 }
4151 }
4152 }
4153
4154 if (r == bfd_reloc_continue)
d0c9aeb3
DM		 4155 {
4156do_relocation:
4157 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
4158 contents, rel->r_offset,
4159 relocation, rel->r_addend);
4160 }
22b75d0a
DM		 4161 if (r != bfd_reloc_ok)
4162 {
4163 switch (r)
4164 {
4165 default:
4166 case bfd_reloc_outofrange:
4167 abort ();
4168 case bfd_reloc_overflow:
4169 {
4170 const char *name;
4171
68ffbac6 4172 /* The Solaris native linker silently disregards overflows.
dc669dc8
EB		 4173 We don't, but this breaks stabs debugging info, whose
4174 relocations are only 32-bits wide. Ignore overflows in
4175 this case and also for discarded entries. */
0bef263a
RO		 4176 if ((r_type == R_SPARC_32
4177 || r_type == R_SPARC_UA32
4178 || r_type == R_SPARC_DISP32)
dc669dc8
EB		 4179 && (((input_section->flags & SEC_DEBUGGING) != 0
4180 && strcmp (bfd_section_name (input_bfd,
4181 input_section),
4182 ".stab") == 0)
4183 || _bfd_elf_section_offset (output_bfd, info,
4184 input_section,
4185 rel->r_offset)
4186 == (bfd_vma)-1))
4187 break;
4188
22b75d0a 4189 if (h != NULL)
bb29dfea
EB		 4190 {
4191 /* Assume this is a call protected by other code that
4192 detect the symbol is undefined. If this is the case,
4193 we can safely ignore the overflow. If not, the
4194 program is hosed anyway, and a little warning isn't
4195 going to help. */
4196 if (h->root.type == bfd_link_hash_undefweak
4197 && howto->pc_relative)
4198 break;
4199
07d6d2b8 4200 name = NULL;
bb29dfea 4201 }
22b75d0a
DM		 4202 else
4203 {
4204 name = bfd_elf_string_from_elf_section (input_bfd,
4205 symtab_hdr->sh_link,
4206 sym->st_name);
4207 if (name == NULL)
4208 return FALSE;
4209 if (*name == '\0')
4210 name = bfd_section_name (input_bfd, sec);
4211 }
1a72702b
AM		 4212 (*info->callbacks->reloc_overflow)
4213 (info, (h ? &h->root : NULL), name, howto->name,
4214 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
22b75d0a
DM		 4215 }
4216 break;
4217 }
4218 }
4219 }
4220
4221 return TRUE;
4222}
4223
910600e9
RS		 4224/* Build a VxWorks PLT entry. PLT_INDEX is the index of the PLT entry
4225 and PLT_OFFSET is the byte offset from the start of .plt. GOT_OFFSET
4226 is the offset of the associated .got.plt entry from
4227 _GLOBAL_OFFSET_TABLE_. */
4228
4229static void
4230sparc_vxworks_build_plt_entry (bfd *output_bfd, struct bfd_link_info *info,
4231 bfd_vma plt_offset, bfd_vma plt_index,
4232 bfd_vma got_offset)
4233{
4234 bfd_vma got_base;
4235 const bfd_vma *plt_entry;
4236 struct _bfd_sparc_elf_link_hash_table *htab;
4237 bfd_byte *loc;
4238 Elf_Internal_Rela rela;
4239
4240 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6
NC		 4241 BFD_ASSERT (htab != NULL);
4242
0e1862bb 4243 if (bfd_link_pic (info))
910600e9
RS		 4244 {
4245 plt_entry = sparc_vxworks_shared_plt_entry;
4246 got_base = 0;
4247 }
4248 else
4249 {
4250 plt_entry = sparc_vxworks_exec_plt_entry;
4251 got_base = (htab->elf.hgot->root.u.def.value
4252 + htab->elf.hgot->root.u.def.section->output_offset
4253 + htab->elf.hgot->root.u.def.section->output_section->vma);
4254 }
4255
4256 /* Fill in the entry in the procedure linkage table. */
4257 bfd_put_32 (output_bfd, plt_entry[0] + ((got_base + got_offset) >> 10),
72fbc6e5 4258 htab->elf.splt->contents + plt_offset);
910600e9 4259 bfd_put_32 (output_bfd, plt_entry[1] + ((got_base + got_offset) & 0x3ff),
72fbc6e5 4260 htab->elf.splt->contents + plt_offset + 4);
910600e9 4261 bfd_put_32 (output_bfd, plt_entry[2],
72fbc6e5 4262 htab->elf.splt->contents + plt_offset + 8);
910600e9 4263 bfd_put_32 (output_bfd, plt_entry[3],
72fbc6e5 4264 htab->elf.splt->contents + plt_offset + 12);
910600e9 4265 bfd_put_32 (output_bfd, plt_entry[4],
72fbc6e5 4266 htab->elf.splt->contents + plt_offset + 16);
910600e9 4267 bfd_put_32 (output_bfd, plt_entry[5] + (plt_index >> 10),
72fbc6e5 4268 htab->elf.splt->contents + plt_offset + 20);
910600e9
RS		 4269 /* PC-relative displacement for a branch to the start of
4270 the PLT section. */
4271 bfd_put_32 (output_bfd, plt_entry[6] + (((-plt_offset - 24) >> 2)
4272 & 0x003fffff),
72fbc6e5 4273 htab->elf.splt->contents + plt_offset + 24);
910600e9 4274 bfd_put_32 (output_bfd, plt_entry[7] + (plt_index & 0x3ff),
72fbc6e5 4275 htab->elf.splt->contents + plt_offset + 28);
910600e9
RS		 4276
4277 /* Fill in the .got.plt entry, pointing initially at the
4278 second half of the PLT entry. */
72fbc6e5 4279 BFD_ASSERT (htab->elf.sgotplt != NULL);
910600e9 4280 bfd_put_32 (output_bfd,
72fbc6e5
DM		 4281 htab->elf.splt->output_section->vma
4282 + htab->elf.splt->output_offset
910600e9 4283 + plt_offset + 20,
72fbc6e5 4284 htab->elf.sgotplt->contents + got_offset);
910600e9
RS		 4285
4286 /* Add relocations to .rela.plt.unloaded. */
0e1862bb 4287 if (!bfd_link_pic (info))
910600e9
RS		 4288 {
4289 loc = (htab->srelplt2->contents
4290 + (2 + 3 * plt_index) * sizeof (Elf32_External_Rela));
4291
4292 /* Relocate the initial sethi. */
72fbc6e5
DM		 4293 rela.r_offset = (htab->elf.splt->output_section->vma
4294 + htab->elf.splt->output_offset
910600e9
RS		 4295 + plt_offset);
4296 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
4297 rela.r_addend = got_offset;
4298 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4299 loc += sizeof (Elf32_External_Rela);
4300
4301 /* Likewise the following or. */
4302 rela.r_offset += 4;
4303 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
4304 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4305 loc += sizeof (Elf32_External_Rela);
4306
4307 /* Relocate the .got.plt entry. */
72fbc6e5
DM		 4308 rela.r_offset = (htab->elf.sgotplt->output_section->vma
4309 + htab->elf.sgotplt->output_offset
910600e9
RS		 4310 + got_offset);
4311 rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_SPARC_32);
4312 rela.r_addend = plt_offset + 20;
4313 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4314 }
4315}
4316
22b75d0a
DM		 4317/* Finish up dynamic symbol handling. We set the contents of various
4318 dynamic sections here. */
4319
4320bfd_boolean
4321_bfd_sparc_elf_finish_dynamic_symbol (bfd *output_bfd,
4322 struct bfd_link_info *info,
4323 struct elf_link_hash_entry *h,
4324 Elf_Internal_Sym *sym)
4325{
22b75d0a 4326 struct _bfd_sparc_elf_link_hash_table *htab;
39817122 4327 const struct elf_backend_data *bed;
bb1dd176
QZ		 4328 struct _bfd_sparc_elf_link_hash_entry *eh;
4329 bfd_boolean local_undefweak;
22b75d0a
DM		 4330
4331 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 4332 BFD_ASSERT (htab != NULL);
39817122 4333 bed = get_elf_backend_data (output_bfd);
22b75d0a 4334
bb1dd176
QZ		 4335 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
4336
4337 /* We keep PLT/GOT entries without dynamic PLT/GOT relocations for
4338 resolved undefined weak symbols in executable so that their
4339 references have value 0 at run-time. */
4340 local_undefweak = UNDEFINED_WEAK_RESOLVED_TO_ZERO (info, eh);
4341
22b75d0a
DM		 4342 if (h->plt.offset != (bfd_vma) -1)
4343 {
4344 asection *splt;
4345 asection *srela;
4346 Elf_Internal_Rela rela;
4347 bfd_byte *loc;
910600e9 4348 bfd_vma r_offset, got_offset;
22b75d0a
DM		 4349 int rela_index;
4350
d0c9aeb3
DM		 4351 /* When building a static executable, use .iplt and
4352 .rela.iplt sections for STT_GNU_IFUNC symbols. */
4353 if (htab->elf.splt != NULL)
4354 {
4355 splt = htab->elf.splt;
4356 srela = htab->elf.srelplt;
4357 }
4358 else
4359 {
4360 splt = htab->elf.iplt;
4361 srela = htab->elf.irelplt;
4362 }
22b75d0a 4363
d0c9aeb3
DM		 4364 if (splt == NULL || srela == NULL)
4365 abort ();
22b75d0a 4366
22b75d0a 4367 /* Fill in the entry in the .rela.plt section. */
910600e9 4368 if (htab->is_vxworks)
22b75d0a 4369 {
910600e9
RS		 4370 /* Work out the index of this PLT entry. */
4371 rela_index = ((h->plt.offset - htab->plt_header_size)
4372 / htab->plt_entry_size);
4373
4374 /* Calculate the offset of the associated .got.plt entry.
4375 The first three entries are reserved. */
4376 got_offset = (rela_index + 3) * 4;
4377
4378 sparc_vxworks_build_plt_entry (output_bfd, info, h->plt.offset,
4379 rela_index, got_offset);
4380
4381
4382 /* On VxWorks, the relocation points to the .got.plt entry,
4383 not the .plt entry. */
72fbc6e5
DM		 4384 rela.r_offset = (htab->elf.sgotplt->output_section->vma
4385 + htab->elf.sgotplt->output_offset
910600e9 4386 + got_offset);
22b75d0a 4387 rela.r_addend = 0;
d0c9aeb3
DM		 4388 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx,
4389 R_SPARC_JMP_SLOT);
22b75d0a
DM		 4390 }
4391 else
4392 {
d0c9aeb3
DM		 4393 bfd_boolean ifunc = FALSE;
4394
910600e9
RS		 4395 /* Fill in the entry in the procedure linkage table. */
4396 rela_index = SPARC_ELF_BUILD_PLT_ENTRY (htab, output_bfd, splt,
4397 h->plt.offset, splt->size,
4398 &r_offset);
4399
d0c9aeb3
DM		 4400 if (h == NULL
4401 || h->dynindx == -1
0e1862bb 4402 || ((bfd_link_executable (info)
d0c9aeb3
DM		 4403 || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
4404 && h->def_regular
4405 && h->type == STT_GNU_IFUNC))
4406 {
4407 ifunc = TRUE;
4408 BFD_ASSERT (h == NULL
4409 || (h->type == STT_GNU_IFUNC
4410 && h->def_regular
4411 && (h->root.type == bfd_link_hash_defined
4412 || h->root.type == bfd_link_hash_defweak)));
4413 }
4414
910600e9
RS		 4415 rela.r_offset = r_offset
4416 + (splt->output_section->vma + splt->output_offset);
d0c9aeb3
DM		 4417 if (ABI_64_P (output_bfd)
4418 && h->plt.offset >= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE))
910600e9 4419 {
d0c9aeb3
DM		 4420 if (ifunc)
4421 {
4422 rela.r_addend = (h->root.u.def.section->output_section->vma
4423 + h->root.u.def.section->output_offset
4424 + h->root.u.def.value);
4425 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0,
4426 R_SPARC_IRELATIVE);
4427 }
4428 else
4429 {
4430 rela.r_addend = (-(h->plt.offset + 4)
4431 - splt->output_section->vma
4432 - splt->output_offset);
4433 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx,
4434 R_SPARC_JMP_SLOT);
4435 }
910600e9
RS		 4436 }
4437 else
4438 {
d0c9aeb3
DM		 4439 if (ifunc)
4440 {
4441 rela.r_addend = (h->root.u.def.section->output_section->vma
4442 + h->root.u.def.section->output_offset
4443 + h->root.u.def.value);
4444 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0,
4445 R_SPARC_JMP_IREL);
4446 }
4447 else
4448 {
4449 rela.r_addend = 0;
4450 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx,
4451 R_SPARC_JMP_SLOT);
4452 }
910600e9 4453 }
22b75d0a 4454 }
22b75d0a
DM		 4455
4456 /* Adjust for the first 4 reserved elements in the .plt section
4457 when setting the offset in the .rela.plt section.
4458 Sun forgot to read their own ABI and copied elf32-sparc behaviour,
4459 thus .plt[4] has corresponding .rela.plt[0] and so on. */
4460
4461 loc = srela->contents;
39817122
RS		 4462 loc += rela_index * bed->s->sizeof_rela;
4463 bed->s->swap_reloca_out (output_bfd, &rela, loc);
22b75d0a 4464
bb1dd176 4465 if (!local_undefweak
07d6d2b8 4466 && !h->def_regular)
22b75d0a
DM		 4467 {
4468 /* Mark the symbol as undefined, rather than as defined in
4469 the .plt section. Leave the value alone. */
4470 sym->st_shndx = SHN_UNDEF;
4471 /* If the symbol is weak, we do need to clear the value.
4472 Otherwise, the PLT entry would provide a definition for
4473 the symbol even if the symbol wasn't defined anywhere,
4474 and so the symbol would never be NULL. */
4475 if (!h->ref_regular_nonweak)
4476 sym->st_value = 0;
4477 }
4478 }
4479
bb1dd176
QZ		 4480 /* Don't generate dynamic GOT relocation against undefined weak
4481 symbol in executable. */
22b75d0a
DM		 4482 if (h->got.offset != (bfd_vma) -1
4483 && _bfd_sparc_elf_hash_entry(h)->tls_type != GOT_TLS_GD
bb1dd176
QZ		 4484 && _bfd_sparc_elf_hash_entry(h)->tls_type != GOT_TLS_IE
4485 && !local_undefweak)
22b75d0a
DM		 4486 {
4487 asection *sgot;
4488 asection *srela;
4489 Elf_Internal_Rela rela;
4490
4491 /* This symbol has an entry in the GOT. Set it up. */
4492
72fbc6e5
DM		 4493 sgot = htab->elf.sgot;
4494 srela = htab->elf.srelgot;
22b75d0a
DM		 4495 BFD_ASSERT (sgot != NULL && srela != NULL);
4496
4497 rela.r_offset = (sgot->output_section->vma
4498 + sgot->output_offset
4499 + (h->got.offset &~ (bfd_vma) 1));
4500
4501 /* If this is a -Bsymbolic link, and the symbol is defined
4502 locally, we just want to emit a RELATIVE reloc. Likewise if
4503 the symbol was forced to be local because of a version file.
4504 The entry in the global offset table will already have been
4505 initialized in the relocate_section function. */
0e1862bb 4506 if (! bfd_link_pic (info)
d0c9aeb3
DM		 4507 && h->type == STT_GNU_IFUNC
4508 && h->def_regular)
4509 {
4510 asection *plt;
4511
4512 /* We load the GOT entry with the PLT entry. */
4513 plt = htab->elf.splt ? htab->elf.splt : htab->elf.iplt;
4514 SPARC_ELF_PUT_WORD (htab, output_bfd,
4515 (plt->output_section->vma
4516 + plt->output_offset + h->plt.offset),
4517 htab->elf.sgot->contents
4518 + (h->got.offset & ~(bfd_vma) 1));
4519 return TRUE;
4520 }
0e1862bb 4521 else if (bfd_link_pic (info)
d0c9aeb3 4522 && SYMBOL_REFERENCES_LOCAL (info, h))
22b75d0a
DM		 4523 {
4524 asection *sec = h->root.u.def.section;
d0c9aeb3
DM		 4525 if (h->type == STT_GNU_IFUNC)
4526 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, R_SPARC_IRELATIVE);
4527 else
4528 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, R_SPARC_RELATIVE);
22b75d0a
DM		 4529 rela.r_addend = (h->root.u.def.value
4530 + sec->output_section->vma
4531 + sec->output_offset);
4532 }
4533 else
4534 {
4535 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, R_SPARC_GLOB_DAT);
4536 rela.r_addend = 0;
4537 }
4538
4539 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
4540 sgot->contents + (h->got.offset & ~(bfd_vma) 1));
39817122 4541 sparc_elf_append_rela (output_bfd, srela, &rela);
22b75d0a
DM		 4542 }
4543
4544 if (h->needs_copy)
4545 {
4546 asection *s;
4547 Elf_Internal_Rela rela;
4548
4549 /* This symbols needs a copy reloc. Set it up. */
4550 BFD_ASSERT (h->dynindx != -1);
4551
22b75d0a
DM		 4552 rela.r_offset = (h->root.u.def.value
4553 + h->root.u.def.section->output_section->vma
4554 + h->root.u.def.section->output_offset);
4555 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, R_SPARC_COPY);
4556 rela.r_addend = 0;
afbf7e8e 4557 if (h->root.u.def.section == htab->elf.sdynrelro)
5474d94f
AM		 4558 s = htab->elf.sreldynrelro;
4559 else
4560 s = htab->elf.srelbss;
39817122 4561 sparc_elf_append_rela (output_bfd, s, &rela);
22b75d0a
DM		 4562 }
4563
910600e9
RS		 4564 /* Mark some specially defined symbols as absolute. On VxWorks,
4565 _GLOBAL_OFFSET_TABLE_ is not absolute: it is relative to the
4566 ".got" section. Likewise _PROCEDURE_LINKAGE_TABLE_ and ".plt". */
d0c9aeb3 4567 if (sym != NULL
9637f6ef 4568 && (h == htab->elf.hdynamic
d0c9aeb3
DM		 4569 || (!htab->is_vxworks
4570 && (h == htab->elf.hgot || h == htab->elf.hplt))))
22b75d0a
DM		 4571 sym->st_shndx = SHN_ABS;
4572
4573 return TRUE;
4574}
4575
4576/* Finish up the dynamic sections. */
4577
22b75d0a 4578static bfd_boolean
39817122
RS		 4579sparc_finish_dyn (bfd *output_bfd, struct bfd_link_info *info,
4580 bfd *dynobj, asection *sdyn,
4581 asection *splt ATTRIBUTE_UNUSED)
22b75d0a 4582{
910600e9 4583 struct _bfd_sparc_elf_link_hash_table *htab;
39817122
RS		 4584 const struct elf_backend_data *bed;
4585 bfd_byte *dyncon, *dynconend;
4586 size_t dynsize;
4587 int stt_regidx = -1;
4588 bfd_boolean abi_64_p;
22b75d0a 4589
910600e9 4590 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 4591 BFD_ASSERT (htab != NULL);
39817122
RS		 4592 bed = get_elf_backend_data (output_bfd);
4593 dynsize = bed->s->sizeof_dyn;
4594 dynconend = sdyn->contents + sdyn->size;
4595 abi_64_p = ABI_64_P (output_bfd);
4596 for (dyncon = sdyn->contents; dyncon < dynconend; dyncon += dynsize)
22b75d0a
DM		 4597 {
4598 Elf_Internal_Dyn dyn;
22b75d0a
DM		 4599 bfd_boolean size;
4600
39817122 4601 bed->s->swap_dyn_in (dynobj, dyncon, &dyn);
22b75d0a 4602
64f52338 4603 if (htab->is_vxworks && dyn.d_tag == DT_PLTGOT)
22b75d0a 4604 {
910600e9
RS		 4605 /* On VxWorks, DT_PLTGOT should point to the start of the GOT,
4606 not to the start of the PLT. */
72fbc6e5 4607 if (htab->elf.sgotplt)
910600e9 4608 {
72fbc6e5
DM		 4609 dyn.d_un.d_val = (htab->elf.sgotplt->output_section->vma
4610 + htab->elf.sgotplt->output_offset);
39817122 4611 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
910600e9
RS		 4612 }
4613 }
7a2b07ff
NS		 4614 else if (htab->is_vxworks
4615 && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn))
4616 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
39817122
RS		 4617 else if (abi_64_p && dyn.d_tag == DT_SPARC_REGISTER)
4618 {
4619 if (stt_regidx == -1)
4620 {
4621 stt_regidx =
4622 _bfd_elf_link_lookup_local_dynindx (info, output_bfd, -1);
4623 if (stt_regidx == -1)
4624 return FALSE;
4625 }
4626 dyn.d_un.d_val = stt_regidx++;
4627 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
4628 }
910600e9
RS		 4629 else
4630 {
ce558b89
AM		 4631 asection *s;
4632
910600e9
RS		 4633 switch (dyn.d_tag)
4634 {
ce558b89
AM		 4635 case DT_PLTGOT:
4636 s = htab->elf.splt;
4637 size = FALSE;
4638 break;
4639 case DT_PLTRELSZ:
4640 s = htab->elf.srelplt;
4641 size = TRUE;
4642 break;
4643 case DT_JMPREL:
4644 s = htab->elf.srelplt;
4645 size = FALSE;
4646 break;
4647 default:
4648 continue;
910600e9 4649 }
22b75d0a 4650
ce558b89
AM		 4651 if (s == NULL)
4652 dyn.d_un.d_val = 0;
4653 else
22b75d0a 4654 {
ce558b89
AM		 4655 if (!size)
4656 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
22b75d0a 4657 else
ce558b89 4658 dyn.d_un.d_val = s->size;
22b75d0a 4659 }
ce558b89 4660 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
22b75d0a
DM		 4661 }
4662 }
4663 return TRUE;
4664}
4665
910600e9
RS		 4666/* Install the first PLT entry in a VxWorks executable and make sure that
4667 .rela.plt.unloaded relocations have the correct symbol indexes. */
4668
4669static void
4670sparc_vxworks_finish_exec_plt (bfd *output_bfd, struct bfd_link_info *info)
4671{
4672 struct _bfd_sparc_elf_link_hash_table *htab;
4673 Elf_Internal_Rela rela;
4674 bfd_vma got_base;
4675 bfd_byte *loc;
4676
4677 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 4678 BFD_ASSERT (htab != NULL);
910600e9
RS		 4679
4680 /* Calculate the absolute value of _GLOBAL_OFFSET_TABLE_. */
4681 got_base = (htab->elf.hgot->root.u.def.section->output_section->vma
4682 + htab->elf.hgot->root.u.def.section->output_offset
4683 + htab->elf.hgot->root.u.def.value);
4684
4685 /* Install the initial PLT entry. */
4686 bfd_put_32 (output_bfd,
4687 sparc_vxworks_exec_plt0_entry[0] + ((got_base + 8) >> 10),
72fbc6e5 4688 htab->elf.splt->contents);
910600e9
RS		 4689 bfd_put_32 (output_bfd,
4690 sparc_vxworks_exec_plt0_entry[1] + ((got_base + 8) & 0x3ff),
72fbc6e5 4691 htab->elf.splt->contents + 4);
910600e9
RS		 4692 bfd_put_32 (output_bfd,
4693 sparc_vxworks_exec_plt0_entry[2],
72fbc6e5 4694 htab->elf.splt->contents + 8);
910600e9
RS		 4695 bfd_put_32 (output_bfd,
4696 sparc_vxworks_exec_plt0_entry[3],
72fbc6e5 4697 htab->elf.splt->contents + 12);
910600e9
RS		 4698 bfd_put_32 (output_bfd,
4699 sparc_vxworks_exec_plt0_entry[4],
72fbc6e5 4700 htab->elf.splt->contents + 16);
910600e9
RS		 4701
4702 loc = htab->srelplt2->contents;
4703
4704 /* Add an unloaded relocation for the initial entry's "sethi". */
72fbc6e5
DM		 4705 rela.r_offset = (htab->elf.splt->output_section->vma
4706 + htab->elf.splt->output_offset);
910600e9
RS		 4707 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
4708 rela.r_addend = 8;
4709 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4710 loc += sizeof (Elf32_External_Rela);
4711
4712 /* Likewise the following "or". */
4713 rela.r_offset += 4;
4714 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
4715 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4716 loc += sizeof (Elf32_External_Rela);
4717
4718 /* Fix up the remaining .rela.plt.unloaded relocations. They may have
4719 the wrong symbol index for _G_O_T_ or _P_L_T_ depending on the order
4720 in which symbols were output. */
4721 while (loc < htab->srelplt2->contents + htab->srelplt2->size)
4722 {
4723 Elf_Internal_Rela rel;
4724
4725 /* The entry's initial "sethi" (against _G_O_T_). */
4726 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
4727 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
4728 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
4729 loc += sizeof (Elf32_External_Rela);
4730
4731 /* The following "or" (also against _G_O_T_). */
4732 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
4733 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
4734 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
4735 loc += sizeof (Elf32_External_Rela);
4736
4737 /* The .got.plt entry (against _P_L_T_). */
4738 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
4739 rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_SPARC_32);
4740 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
4741 loc += sizeof (Elf32_External_Rela);
4742 }
4743}
4744
4745/* Install the first PLT entry in a VxWorks shared object. */
4746
4747static void
4748sparc_vxworks_finish_shared_plt (bfd *output_bfd, struct bfd_link_info *info)
4749{
4750 struct _bfd_sparc_elf_link_hash_table *htab;
4751 unsigned int i;
4752
4753 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6
NC		 4754 BFD_ASSERT (htab != NULL);
4755
910600e9
RS		 4756 for (i = 0; i < ARRAY_SIZE (sparc_vxworks_shared_plt0_entry); i++)
4757 bfd_put_32 (output_bfd, sparc_vxworks_shared_plt0_entry[i],
72fbc6e5 4758 htab->elf.splt->contents + i * 4);
910600e9
RS		 4759}
4760
d0c9aeb3
DM		 4761/* Finish up local dynamic symbol handling. We set the contents of
4762 various dynamic sections here. */
4763
4764static bfd_boolean
4765finish_local_dynamic_symbol (void **slot, void *inf)
4766{
4767 struct elf_link_hash_entry *h
4768 = (struct elf_link_hash_entry *) *slot;
4769 struct bfd_link_info *info
68ffbac6 4770 = (struct bfd_link_info *) inf;
d0c9aeb3
DM		 4771
4772 return _bfd_sparc_elf_finish_dynamic_symbol (info->output_bfd, info,
4773 h, NULL);
4774}
4775
bb1dd176
QZ		 4776/* Finish up undefined weak symbol handling in PIE. Fill its PLT entry
4777 here since undefined weak symbol may not be dynamic and may not be
4778 called for _bfd_sparc_elf_finish_dynamic_symbol. */
4779
4780static bfd_boolean
4781pie_finish_undefweak_symbol (struct bfd_hash_entry *bh,
07d6d2b8 4782 void *inf)
bb1dd176
QZ		 4783{
4784 struct elf_link_hash_entry *h = (struct elf_link_hash_entry *) bh;
4785 struct bfd_link_info *info = (struct bfd_link_info *) inf;
4786
4787 if (h->root.type != bfd_link_hash_undefweak
4788 || h->dynindx != -1)
4789 return TRUE;
4790
4791 return _bfd_sparc_elf_finish_dynamic_symbol (info->output_bfd, info,
07d6d2b8 4792 h, NULL);
bb1dd176
QZ		 4793}
4794
22b75d0a
DM		 4795bfd_boolean
4796_bfd_sparc_elf_finish_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info)
4797{
4798 bfd *dynobj;
4799 asection *sdyn;
4800 struct _bfd_sparc_elf_link_hash_table *htab;
4801
4802 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 4803 BFD_ASSERT (htab != NULL);
22b75d0a
DM		 4804 dynobj = htab->elf.dynobj;
4805
3d4d4302 4806 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
22b75d0a
DM		 4807
4808 if (elf_hash_table (info)->dynamic_sections_created)
4809 {
4810 asection *splt;
22b75d0a 4811
3d4d4302 4812 splt = htab->elf.splt;
22b75d0a
DM		 4813 BFD_ASSERT (splt != NULL && sdyn != NULL);
4814
39817122
RS		 4815 if (!sparc_finish_dyn (output_bfd, info, dynobj, sdyn, splt))
4816 return FALSE;
22b75d0a
DM		 4817
4818 /* Initialize the contents of the .plt section. */
4819 if (splt->size > 0)
4820 {
910600e9
RS		 4821 if (htab->is_vxworks)
4822 {
0e1862bb 4823 if (bfd_link_pic (info))
910600e9
RS		 4824 sparc_vxworks_finish_shared_plt (output_bfd, info);
4825 else
4826 sparc_vxworks_finish_exec_plt (output_bfd, info);
4827 }
22b75d0a
DM		 4828 else
4829 {
910600e9
RS		 4830 memset (splt->contents, 0, htab->plt_header_size);
4831 if (!ABI_64_P (output_bfd))
4832 bfd_put_32 (output_bfd, (bfd_vma) SPARC_NOP,
4833 splt->contents + splt->size - 4);
22b75d0a
DM		 4834 }
4835 }
4836
387f8054 4837 if (elf_section_data (splt->output_section) != NULL)
07d6d2b8
AM		 4838 elf_section_data (splt->output_section)->this_hdr.sh_entsize
4839 = ((htab->is_vxworks || !ABI_64_P (output_bfd))
4840 ? 0 : htab->plt_entry_size);
22b75d0a
DM		 4841 }
4842
4843 /* Set the first entry in the global offset table to the address of
4844 the dynamic section. */
72fbc6e5 4845 if (htab->elf.sgot && htab->elf.sgot->size > 0)
22b75d0a
DM		 4846 {
4847 bfd_vma val = (sdyn ?
4848 sdyn->output_section->vma + sdyn->output_offset :
4849 0);
4850
72fbc6e5 4851 SPARC_ELF_PUT_WORD (htab, output_bfd, val, htab->elf.sgot->contents);
22b75d0a
DM		 4852 }
4853
72fbc6e5
DM		 4854 if (htab->elf.sgot)
4855 elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize =
22b75d0a
DM		 4856 SPARC_ELF_WORD_BYTES (htab);
4857
d0c9aeb3
DM		 4858 /* Fill PLT and GOT entries for local STT_GNU_IFUNC symbols. */
4859 htab_traverse (htab->loc_hash_table, finish_local_dynamic_symbol, info);
4860
bb1dd176
QZ		 4861 /* Fill PLT entries for undefined weak symbols in PIE. */
4862 if (bfd_link_pie (info))
4863 bfd_hash_traverse (&info->hash->table,
07d6d2b8
AM		 4864 pie_finish_undefweak_symbol,
4865 info);
22b75d0a
DM		 4866 return TRUE;
4867}
4868
4869\f
4870/* Set the right machine number for a SPARC ELF file. */
4871
4872bfd_boolean
4873_bfd_sparc_elf_object_p (bfd *abfd)
4874{
4f26fb3a
JM		 4875 obj_attribute *attrs = elf_known_obj_attributes (abfd)[OBJ_ATTR_GNU];
4876 obj_attribute *hwcaps = &attrs[Tag_GNU_Sparc_HWCAPS];
4877 obj_attribute *hwcaps2 = &attrs[Tag_GNU_Sparc_HWCAPS2];
4878
4879 unsigned int v9c_hwcaps_mask = ELF_SPARC_HWCAP_ASI_BLK_INIT;
4880 unsigned int v9d_hwcaps_mask = (ELF_SPARC_HWCAP_FMAF
07d6d2b8
AM		 4881 | ELF_SPARC_HWCAP_VIS3
4882 | ELF_SPARC_HWCAP_HPC);
4f26fb3a 4883 unsigned int v9e_hwcaps_mask = (ELF_SPARC_HWCAP_AES
07d6d2b8
AM		 4884 | ELF_SPARC_HWCAP_DES
4885 | ELF_SPARC_HWCAP_KASUMI
4886 | ELF_SPARC_HWCAP_CAMELLIA
4887 | ELF_SPARC_HWCAP_MD5
4888 | ELF_SPARC_HWCAP_SHA1
4889 | ELF_SPARC_HWCAP_SHA256
4890 | ELF_SPARC_HWCAP_SHA512
4891 | ELF_SPARC_HWCAP_MPMUL
4892 | ELF_SPARC_HWCAP_MONT
4893 | ELF_SPARC_HWCAP_CRC32C
4894 | ELF_SPARC_HWCAP_CBCOND
4895 | ELF_SPARC_HWCAP_PAUSE);
4f26fb3a 4896 unsigned int v9v_hwcaps_mask = (ELF_SPARC_HWCAP_FJFMAU
07d6d2b8 4897 | ELF_SPARC_HWCAP_IMA);
4f26fb3a 4898 unsigned int v9m_hwcaps2_mask = (ELF_SPARC_HWCAP2_SPARC5
07d6d2b8
AM		 4899 | ELF_SPARC_HWCAP2_MWAIT
4900 | ELF_SPARC_HWCAP2_XMPMUL
4901 | ELF_SPARC_HWCAP2_XMONT);
64517994 4902 unsigned int m8_hwcaps2_mask = (ELF_SPARC_HWCAP2_SPARC6
07d6d2b8
AM		 4903 | ELF_SPARC_HWCAP2_ONADDSUB
4904 | ELF_SPARC_HWCAP2_ONMUL
4905 | ELF_SPARC_HWCAP2_ONDIV
4906 | ELF_SPARC_HWCAP2_DICTUNP
4907 | ELF_SPARC_HWCAP2_FPCMPSHL
4908 | ELF_SPARC_HWCAP2_RLE
4909 | ELF_SPARC_HWCAP2_SHA3);
4f26fb3a 4910
22b75d0a
DM		 4911 if (ABI_64_P (abfd))
4912 {
4913 unsigned long mach = bfd_mach_sparc_v9;
4914
64517994 4915 if (hwcaps2->i & m8_hwcaps2_mask)
07d6d2b8 4916 mach = bfd_mach_sparc_v9m8;
64517994 4917 else if (hwcaps2->i & v9m_hwcaps2_mask)
07d6d2b8 4918 mach = bfd_mach_sparc_v9m;
4f26fb3a 4919 else if (hwcaps->i & v9v_hwcaps_mask)
07d6d2b8 4920 mach = bfd_mach_sparc_v9v;
4f26fb3a 4921 else if (hwcaps->i & v9e_hwcaps_mask)
07d6d2b8 4922 mach = bfd_mach_sparc_v9e;
4f26fb3a 4923 else if (hwcaps->i & v9d_hwcaps_mask)
07d6d2b8 4924 mach = bfd_mach_sparc_v9d;
4f26fb3a 4925 else if (hwcaps->i & v9c_hwcaps_mask)
07d6d2b8 4926 mach = bfd_mach_sparc_v9c;
4f26fb3a 4927 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3)
22b75d0a
DM		 4928 mach = bfd_mach_sparc_v9b;
4929 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1)
4930 mach = bfd_mach_sparc_v9a;
4931 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, mach);
4932 }
4933 else
4934 {
4935 if (elf_elfheader (abfd)->e_machine == EM_SPARC32PLUS)
4936 {
07d6d2b8
AM		 4937 if (hwcaps2->i & m8_hwcaps2_mask)
4938 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4939 bfd_mach_sparc_v8plusm8);
4940 else if (hwcaps2->i & v9m_hwcaps2_mask)
4f26fb3a
JM		 4941 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4942 bfd_mach_sparc_v8plusm);
07d6d2b8
AM		 4943 else if (hwcaps->i & v9v_hwcaps_mask)
4944 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4f26fb3a 4945 bfd_mach_sparc_v8plusv);
07d6d2b8
AM		 4946 else if (hwcaps->i & v9e_hwcaps_mask)
4947 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4f26fb3a 4948 bfd_mach_sparc_v8pluse);
07d6d2b8
AM		 4949 else if (hwcaps->i & v9d_hwcaps_mask)
4950 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4f26fb3a 4951 bfd_mach_sparc_v8plusd);
07d6d2b8
AM		 4952 else if (hwcaps->i & v9c_hwcaps_mask)
4953 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4f26fb3a
JM		 4954 bfd_mach_sparc_v8plusc);
4955 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3)
22b75d0a
DM		 4956 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4957 bfd_mach_sparc_v8plusb);
4958 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1)
4959 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4960 bfd_mach_sparc_v8plusa);
4961 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_32PLUS)
4962 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4963 bfd_mach_sparc_v8plus);
4964 else
4965 return FALSE;
4966 }
4967 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_LEDATA)
4968 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4969 bfd_mach_sparc_sparclite_le);
4970 else
4971 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, bfd_mach_sparc);
4972 }
4973}
4974
4975/* Return address for Ith PLT stub in section PLT, for relocation REL
4976 or (bfd_vma) -1 if it should not be included. */
4977
4978bfd_vma
4979_bfd_sparc_elf_plt_sym_val (bfd_vma i, const asection *plt, const arelent *rel)
4980{
4981 if (ABI_64_P (plt->owner))
4982 {
4983 bfd_vma j;
4984
4985 i += PLT64_HEADER_SIZE / PLT64_ENTRY_SIZE;
4986 if (i < PLT64_LARGE_THRESHOLD)
4987 return plt->vma + i * PLT64_ENTRY_SIZE;
4988
4989 j = (i - PLT64_LARGE_THRESHOLD) % 160;
4990 i -= j;
4991 return plt->vma + i * PLT64_ENTRY_SIZE + j * 4 * 6;
4992 }
4993 else
4994 return rel->address;
4995}
9e8c70f9
DM		 4996
4997/* Merge backend specific data from an object file to the output
4998 object file when linking. */
4999
5000bfd_boolean
50e03d47 5001_bfd_sparc_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
9e8c70f9 5002{
50e03d47 5003 bfd *obfd = info->output_bfd;
9e8c70f9
DM		 5004 obj_attribute *in_attr, *in_attrs;
5005 obj_attribute *out_attr, *out_attrs;
5006
5007 if (!elf_known_obj_attributes_proc (obfd)[0].i)
5008 {
5009 /* This is the first object. Copy the attributes. */
5010 _bfd_elf_copy_obj_attributes (ibfd, obfd);
5011
5012 /* Use the Tag_null value to indicate the attributes have been
5013 initialized. */
5014 elf_known_obj_attributes_proc (obfd)[0].i = 1;
5015
5016 return TRUE;
5017 }
5018
5019 in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU];
5020 out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU];
5021
5022 in_attr = &in_attrs[Tag_GNU_Sparc_HWCAPS];
5023 out_attr = &out_attrs[Tag_GNU_Sparc_HWCAPS];
1b786873 5024
3d68f91c
JM		 5025 out_attr->i |= in_attr->i;
5026 out_attr->type = 1;
9e8c70f9 5027
3d68f91c
JM		 5028 in_attr = &in_attrs[Tag_GNU_Sparc_HWCAPS2];
5029 out_attr = &out_attrs[Tag_GNU_Sparc_HWCAPS2];
1b786873 5030
9e8c70f9 5031 out_attr->i |= in_attr->i;
209be8d2 5032 out_attr->type = 1;
9e8c70f9
DM		 5033
5034 /* Merge Tag_compatibility attributes and any common GNU ones. */
50e03d47 5035 _bfd_elf_merge_object_attributes (ibfd, info);
9e8c70f9
DM		 5036
5037 return TRUE;
5038}
GDB Binutils - Deliverables
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